Port Shepstone Islamic School
_____________________________
Mathematics Department
GRADE 9
MATHEMATICS
TERM 1
2021
REVISION TEST ONE
MARKING GUIDELINE
MARKS: 50
TIME : 1 HOUR
This marking guideline consists of 5 pages
2
QUESTION 1
1.1
Whole number
✓ Answer
(1)
1.2
✓ Answer
Irrational
(1)
1.3
✓ Answer
Rational
(1)
1.4
✓ Answer
Natural
(1)
1.5
Non – real
✓ Answer
(1)
[5]
QUESTION 2
2.1
24x3yz4 = 1×23×3× x3yz4
✓ factors
30x2y2z3 = 1 ×2×3×5× x2y2z3
✓ factors
36x3y2z3 = 1 ×22×32× x3y2z3
✓ factors
HCF = 1 × 2 ×3 × x2 ×y×z3
✓ Answer
= 6x2yz3
(4)
2.2
150 = 1 ×2×3
×52
✓ factors
250 = 1 × 2 × 53
✓ factors
375 = 1 × 3× 53
✓ factors
LCM = 1 × 2 × 3 × 53
= 750
✓ Answer
(4)
[8]
QUESTION 3
3.1
7:6
✓7
✓6
(2)
3.2
=
3 R700

2
1
= R1050
✓Method
✓ Answer
(2)
3
✓Method
OR
2 parts = R700
1 Part = R350
3 parts = 3 × 350
= R1050
3.3
=
✓ Answer
(2)
✓Method
10
 117kg
13
✓ Answer
= 90kg
(2)
OR
13 parts = 117kg
1 part = 9 kg
10 parts = 90kg
✓Method
✓ Answer
(2)
3.4
Total ratio = 3+5+7
= 15
3 R 2100

= R 420
1st Share =
15
1
✓ Answer
2nd share =
5 R 2100

= R 700
15
1
✓ Answer
3rd share =
7 R 2100

= R980
15
1
✓ Answer
(3)
3.5
18 min → 30km
✓ Method
1 hour 48 min = 108min
Distance =
108
 30
18
✓ Method
✓ Answer
= 180km
(3)
3.6.1
Litres of milk
1
2
4
6
8✓
Cost in rand
8
16
32
48✓ 64
12
96✓
As indicated
(3)
4
✓ Answer
3.6.2 Direct proportion
(1)
3.7.1
Number of Men to do
1
2
4
6
10✓
12
8
4
2
4
✓
3
4
5
2
✓
3
As indicated
task
Hours to complete a
task
3.7.2 Indirect
✓ Answer
(1)
[20]
QUESTION 4
4.1.
= –3 –6
=–9
✓ Method
✓ Answer
(2)
121  130  144
4.2
4.3
4.4
4.5.1
4.5.2
✓ Method
11 < 130 < 12
Between 11 and 12.
✓ Answer
= 73 − 9
= 3 64
=4
✓ Method
144 3 64
−
100
1000
12 4
= −
10 10
8
=
10
4
=
5
✓ Method
3
=
35 28
= −
40 40
7
=
40
7 7

3 2
49
=
6
1
=8
6
=
(2)
✓ Answer
(2)
✓ Answer
(2)
Method must be
seen
✓ Answer
(1)
Method must be
seen
✓ Answer
(1)
5
4.5.3 = (24  6) + (2 × 9)
= 4 + 18
= 22
4.5.4
✓Method
✓ Answer
(1)
Method must be
seen
4
2

10 100
8
=
1000
=
✓ Answer
(1)
= 0, 008
[13]
QUESTION 5
Answer only: 0
= − 64  −8
5.1
=8
5.2
5.3
Method must be
seen
✓ Answer
(1)
Method must be
seen
5 4
= +
2 3
=
15 + 8
6
=
23
5
or 3
6
6
✓ Answer
(1)
Method must be
seen
8 10
= 
3 9
8 9
= 
3 10
=
5.4
✓ Answer
12
2
or 2
5
5
(1)
Method must be
seen
1
9
−
2
4
1 3
=− −
2 2
4
= −
2
=−
✓ Answer
= −2
(1)
GRAND TOTAL
[4]
50