©2022 ©2022
Alston Education
Alston Education
Pte Ltd.Pte
Created
Ltd. Created
using content
using content
from Inside
fromOut
Inside
Maths
OutTextbook
Maths TB&&Workbook
WB 4. 4. This presentation is not for sale.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
800,000
5,222,000
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
473,472
Four hundred and seventy-three thousand, four hundred and seventy-two
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
9,633,081
Nine million, six hundred and thirty-three thousand and eighty-one
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
1,100,000
60,000
4,100,000
6,600,000
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
300,000
8,000,000
4 hundred thousands, 6 ten thousands, 7 thousands, 8 hundreds, 9 tens and 2 ones
400,000
7,000
7 millions, 2 hundred thousands, 9 ten thousands, 5 thousands, 3 hundreds and 3 tens
7,000,000
90,000
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
425,062, 425,602, 452,602
5,873,200, 5,837,200, 5,738,200
893,599, 893,500, 892,499,
893,449
3,164,000, 3,461,000, 3,614,000,
3,641,000
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
367,000
760,000
2,800,000
5,200,000
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
1(a) Four hundred and fifty-seven thousand, one hundred and twenty-nine.
1(b) Seven hundred and thirteen thousand, five hundred and eighty.
1(c) Three million, six hundred thousand, two hundred and seventy-eight.
1(d) Nine million, two hundred and forty-seven thousand, eight hundred and twelve.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
540,000
660,000
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
500,000
7,000,000
400,000
500,000
700
100
447,626, 474,626, 477,626
9,720,000, 9,072,000, 7,209,000
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
7,600,000
5,600,000
5,000,000
400
7,000,000
8,000
522,499, 522,449, 521,595, 521,559
2,738,000, 2,873,000,
3,788,000, 3,887,000
900,000
6,600,000
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
940,542
10,000,000
1,219,179
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
1) 4,494,712
2) 7,774,681
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
1) 810,000 + 710,000 = 1,520,000
2) 9,400,000 – 6,800,000 = 2,600,000
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
659,995
700,000
Answer may vary. Accept any plausible answer.
614,280
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
974,772
1,001,221
603,251
569,265
471,628
367,100 + 81,216 = 448,316
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
8,222,223
221,334
365,000 + 128,000 = 493,000
365,000 + 493,000 = 858,000
500,000 litres
Answer may vary. Accept any plausible answer.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
01:00
02:45
07:00
11:23
16:00
14:05
3(a) 9 h 30 min
3(b) 5 h 50 min
3(c) 3 h 45 min
3(d) 6 h 15 min
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
22:00
23:59
360 min
195 min
560 min
480 seconds
444 seconds
1,802 seconds
4h
10 min
5 h 50 min
8 min 40 s
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
14:10
1 h 55 min
5.38 p.m.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
1.20 a.m. , Saturday
Music
Tuesday
Wednesday
30
4
12.30 p.m.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
02:00
05:40
16:17
8 h 25 min
260
997
3
6
45
55
80 min
10:40
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
21:23
7 h 30 min
Wednesday
Tuesday
Friday
2
5
3
30
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
1 h 50 min
1.19 p.m.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
16 cm
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
18 m
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
7 unit 2
8 unit 2
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
6 cm2
10 cm2
7 m2
16 m2
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
24 m2
25 cm2
17 cm
9m
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
Q
16
Area: 3 𝑢𝑛𝑖𝑡 2 and 15 𝑢𝑛𝑖𝑡 2
Perimeter: 8 units and 16 units
Answers vary.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
2 + 4 + 2 + 4 = 12
4 + 8 + 4 = 16
12 cm
16 cm
16 m
4 x 4 = 16
28 m
5+5+4+3+3+
4 + 2 + 2 = 28
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
20 cm
12 unit 2
20 cm
8 unit 2
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
8 cm2
18 cm2
13 m2
25 m2
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
180 m2
49 cm2
24 cm
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
36 m
169 m2
625 cm2
70 m
7) 18 x 7 = 126
8) 13 x 13 = 169
9) 25 x 25 = 625
10) 7000 ÷ 100 = 70
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
126 cm2
6 cm
Answers may vary.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
Area
H: 9 𝑐𝑚2
I: 6 𝑐𝑚2
J: 5 𝑐𝑚2
K: 5 𝑐𝑚2
Perimeter
H: 12 cm
I: 12 cm
J: 12 cm
K: 9 cm
J and K
H, I and J
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
630,000
615,978
491,138
2,000,000
8,943,640
7,777,523
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
700
9,000
6,549
133,031 R 3
950,605 R 5
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
Answers may vary
2,500,000
6,000,000
8,000,000
10,000
10,000
25,000
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
383,040 min
3,900,000 ฿
159,250 𝑚2
325,000 approximates to 300,000
300,000 ÷ 6 = 50,000 L
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
419,958
3,000,000
7,334,705
500
62,832 R 4
7,000,000
100,000
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
8,943,640
538,556 R 2
409,200
151,000 ฿
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
25
30
12
26
16
7
5
95
300 + 40 – 60 x 8 ÷ 4 = 220
300 x 6 + 700 – 500 ÷ 5 = 2,400
8,000 + (2,000 – 700) x (3 + 7) = 21,000
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
8+5-6
4 x 8 - 12
14 + 35 ÷ 7
4 x 5 - 64 ÷ 8
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
1950 + 325 - 7 x 300 = 175 ml
(138 + 225 + 197) ÷ 2 = 280
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©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
6 + 20 ÷ 5
80÷ 5 − 2 x 4
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
80 – 27 = 53
50 – 40 = 10
3 x 16 ÷ 2 = 24
30 + 6 – 15 = 21
35 + 6 = 41
240 ÷ 12 = 20
112 ÷ 7 = 16
96 + 8 - 9 = 95
200 + 60 – 40 x 20÷ 4 = 60
400 x 7 + 700 - 3000 ÷ 5 = 2900
6000 + (1000 – 800) x (6 + 4) = 8000
30000 – 10 x (1000 + 9000 ÷ 90) = 19000
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
(280 + 460) – (144 x 5) = 20
(790 + 1,030 + 400) ÷ 2 = 1,110 ฿
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
(24 x 56 – 504) ÷ 40 = 21
(16 x 400 + 15 x 500) = 13,900
Approximately 14,000
14,000 ÷ 70 = 200
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
8 angles
acute angle
obtuse angle
right angle
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
acute angle
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©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
145𝑜
55𝑜
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
40𝑜
28𝑜
12𝑜
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
1) Ensure angle is acute and labelled.
2) Ensure angle is obtuse and labelled.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
1) 4 acute angles
obtuse angle
right angle
acute angle
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3 acute and
2 obtuse angles
120°
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68°
28°
96°
The sum of ∠AOB and ∠BOC is equal to ∠AOC.
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©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
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6 10 8
5, 9, 8
Mixed number =
3
2
8
Improper fraction =
19
8
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5
1
0
9
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9
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©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
(a)
2 4 6
1
7, 7, 7,
(b)
3 3 3 3
(a)
11, 9, 7, 4,
5
Smallest:
6
3
Smallest:
4
2
1 1
8, 4,
1
1 3
1
4, 4
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1
4,
1
6 4 2
1,
7, 7, 7
3 3 3 3
(b)
4, 7, 9, 11
Greatest: 2
1
6
Greatest: 3
1
4
3
4,
1
1 1
4, 4
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5
6
11
12
5
10
4
9
1
3
5
4
2
2
5
2
2
10
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9
3
10
1
2
6
15
12
15
3
Smallest:
11
3
Greatest:
4
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12
1 2 4 6
8, 8, 8, 8,
4
1
4
5
2
1
4
2
1
6
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1
3 1 4
2,1 1
5, 5, 5
2
12
Answers may vary
1
2
E.g. 𝑎𝑛𝑑 2
3
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3
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©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
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1(a) 0 ones and 8 tenths
1(c) 4 ones and 0 tenths
1(b) 1 one and 3 tenths
1(d) 11 ones and 4 tenths
2(a) 0.6
2(b) 3.5
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Smallest: 0.4 Greatest: 1.1
Smallest: 2.6 Greatest: 12.7
3.5, 3.9, 6.1, 6.6, 8.3
11.0, 8.1, 7.7, 0.9, 0.5
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©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
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1(a) 0 ones and 2 tenths
1(b) 3 ones and 4 tenths
1(c) 5 ones and 6 tenths
1(d) 10 ones and 0 tenths
2(a) 0.9
2(b) 2.4
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Smallest: 0.5
Greatest: 2.0
0.1, 2.4, 3.6, 7.8
2
8.4
4.5
5.4
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26.6
13.6
12.5, 12.0, 11.8, 11.1, 10.9, 10.6
5.6
385.2 g
2.4ℓ
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Rectangles: B, C, E
Squares: A, D
Ensure accurate measurements, with right-angles.
8 cm
3 cm
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O
OC, OD, OG, OH, OA, OB
AB, CD, GH
8 cm
20 cm
Answers may vary
Answers may vary
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©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
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1 axis of symmetry
2 axes of symmetry
No
Yes
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2 pairs
4 right angles
4 axes of symmetry
2 axes of symmetry
12cm
26cm
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6. Infinite lines of symmetry. 7. Ensure accurate measurements
There are infinite lines passing and right angles, with parallel
through the centre of the circle sides of equal lengths.
8 cm
and infinite parts of the circle on
each side of the line that matches
8 cm
up.
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December
3
8
November
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©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.
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24
Monday
Thursday
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162
May
Ice
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2
2
D
A
D
10
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11
6
green
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400
300
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39
32
68
33
67
128
268
268
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©2022 Alston Education Pte Ltd. Created using content from Inside Out Maths Textbook & Workbook 4.