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Cambridge Primary Checkpoint
MATHEMATICS
0845/01
Paper 1
October 2022
MARK SCHEME
Maximum Mark: 40
Published
This mark scheme is published as an aid to teachers and candidates, to indicate the requirements
of the examination. It shows the basis on which Markers were instructed to award marks. It does
not indicate the details of the discussions that took place at a Markers’ meeting before marking
began, which would have considered the acceptability of alternative answers.
Mark schemes should be read in conjunction with the question paper and the End of Series
Report. Cambridge will not enter into discussions about these mark schemes.
This document has 10 pages. Any blank pages are indicated.
IB22 10_0845_01/3RP
© UCLES 2022
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Mark scheme annotations and abbreviations
M1
A1
B1
FT
dep
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method mark
accuracy mark
independent mark
follow through after error
dependent
or equivalent
correct answer only
ignore subsequent working
seen or implied
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Further Information
1
9
2
16 (cm) ± 0.5 cm
1 Accept answers in the range 15.5 cm to 16.5 cm
inclusive.
Accept equivalent answers using different linear
units provided the units are clearly stated.
3
($) 118
2
M1
2 × (85 – 26) = wrong answer
53
1
5
4×3
3×4
1 Either order.
Both answers correct for the mark.
6
2.75 (kg)
1
7
© UCLES 2022
Correct method with arithmetical errors.
4
7 (boxes)
Accept 2
3
4
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(kg)
1 Correct answer only.
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Marks
5
1
9
(5, 1)
1
4.73
>
4.65
3.21
>
3.09
5.07
<
5.1
x y
Allow (5 , 1)
1 Accept equivalent with correct units e.g. 0.720 kg.
12
150
1
14
2.7
3
3.3
×
4.7
7
×
6.3
3
B
6.7
×
1 Both numbers circled for the mark.
Accept any clear indication.
8.7
2 Award 2 marks for all four boxes correct.
5
The numbers 3, 7, 3 and 5 can be in any order.
Accept 9 x 7 x 5 x 1 (all boxes completed)
B1
one correct pair of factors of 21 or 15:
Allow 9 x 7 x 5 with a blank box.
3 and 7 in any order
or
3 and 5 in any order
© UCLES 2022
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1 All three answers correct for the mark.
720 (g)
2.3
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but not (5x , 1y)
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63 900
1
16
11 or 19
1
17
3 (hours) 35 (minutes)
1 Accept 0 hours 215 minutes.
Accept 20 hours 25 minutes (next day).
30 × 90
40 × 80
50 × 70
60 × 60
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1 Allow 2700, 3200, 3500, 3600
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Do not allow 270, 320, 350, 360
19
3
7
3
10
1
2
4
2
5
any two correct lines
20
0.2
2
5
0.4
0.4
© UCLES 2022
2 Accept slight inaccuracies provided the intention
is clear.
4
3
1
4
B1
2
5
0.2
0.75
1
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Further Information
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1 Allow if the blank card in the question is correctly
filled in and no other card circled.
2
5
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Answer
Dinosaur
Height in cm
Marks
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Further Information
2 Award 2 marks for all four measurements correct.
Height in m
Answers must only be written in metres.
500
5
820
8.2
50
0.5
480
4.8
Diplodocus
Triceratops
Velociraptor
Tyrannosaurus Rex
any two or three measurements correct
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Marks
0.83
1
23
‘No’
and
an explanation showing that, although bar is twice as tall,
the scale starts at 40 not at zero, e.g.
• 60 is not double 50.
• Saturday is twice as long as the bar for Thursday, but it
does not represent twice as many visitors because the
scale does not start at zero.
1 Allow accurate reading of graph i.e. Thursday 50
and Saturday 60
OR
An implication that both readings have been
made correctly, e.g.
If Saturday’s reading was twice Thursday’s it
would be 100 and not 60
24
25 (red flowers)
2
e.g.
[45 ÷ (5 + 4)] × 5
M1
For a correct method containing any number of
arithmetic errors.
sight of 20 white flowers with no evidence of an incorrect
method
B1
No mark for 20 red flowers.
6 and 8 or 1 and 6
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2 Allow a correct list e.g. 3, 6, 6, 8 or 1, 6, 3, 6
any two numbers which together with 3 and 6 have a range B1
of 5
e.g. (3, 6,) 3, 8
OR
any two numbers which with together with 3 and 6 have a
mode of 6
e.g. (3, 6,) 6, 6
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Further Information
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25
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26
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Further Information
1 Accept slight inaccuracies in the drawing provided
the intention is clear.
mirror line
27
1.31
1
28
54
0.54
90
9
2
any two or three correct
29
© UCLES 2022
B1
2 Accept answers written on diagram.
110 (°)
e.g. (180 − 70 − 70) + 70 = wrong answer
M1
Sight of 40 (°)
B1
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Answer
Marks
7.4 + 2.7
7.4 + 3 – 0.3

10.2 – 6.8
10.2 – 7 + 0.2

23.5 – 8.9
23.5 – 9 – 0.1

2.8 + 13.6
13.6 + 3 + 0.2

any three correct
31
© UCLES 2022
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Further Information
2 Award 2 marks for all four answers correct.
Accept alternative indications, e.g. ‘correct’ and
‘not correct’.
B1
288
and
an explanation that shows how the total of 18 can be made
using only the given number facts, e.g.
• 10 + 10 – 2 = 18
• 10 + 2 + 2 + 2 + 2 = 18
or
an explanation that uses only given products, e.g.
• 160 + 160 − 32 = 288
• 160 + 32 + 32 + 32 + 32 = 288
1 Do not award the mark for evidence of:
• a 2-digit number being multiplied by a 2-digit
number
• repeated addition of 16 only.
Allow 32 + 80 + 160 +16
OR
2 + 5 + 6 +1
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BLANK PAGE
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Cambridge Primary Checkpoint
MATHEMATICS
0845/02
Paper 2
October 2022
MARK SCHEME
Maximum Mark: 40
Published
This mark scheme is published as an aid to teachers and candidates, to indicate the requirements
of the examination. It shows the basis on which Markers were instructed to award marks. It does
not indicate the details of the discussions that took place at a Markers’ meeting before marking
began, which would have considered the acceptability of alternative answers.
Mark schemes should be read in conjunction with the question paper and the End of Series
Report. Cambridge will not enter into discussions about these mark schemes.
This document has 10 pages.
IB22 10_0845_02/4RP
© UCLES 2022
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Mark scheme annotations and abbreviations
M1
A1
B1
FT
dep
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method mark
accuracy mark
independent mark
follow through after error
dependent
or equivalent
correct answer only
ignore subsequent working
seen or implied
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Answer
Marks
1 or ballroom
–1 or swimming pool
B
10
=
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Further Information
B1
1
2
3
any multiple of 100 i.e. 100, 200, up to 900
1
4
50 (bananas)
2
190 (apples)
one correct answer in the correct position
© UCLES 2022
B1
5
E3
1
6
3060
1 Correct answer only.
Accept answer in words.
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1 Both answers correct for the mark.
5
0.5 =
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2
one correct answer in the correct position
2
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Further Information
1 Accept alternative unambiguous indications of the
correct answer.
7
Allow if all correct lines of symmetry are shown.
8
70 (centimetres)
2
1.03 (metres)
one correct answer in the correct position
9
© UCLES 2022
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3 . 6
1
8
5 .
3
2
1
8 .
3
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Marks
or
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Further Information
Do not accept incomplete triangles e.g.
or
no
and
an explanation that shows that all multiples of 5 end with a 0
or 5 e.g. It ends in 3 (not 5 or 0)
OR
an explanation that 15943 ÷ 5 is not a whole number.
e.g. 15943 ÷ 5 = an answer with a remainder
OR
an explanation that the number is not a multiple of 5
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1 Accept correctly drawn triangle in any orientation.
10
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10
9
8
7
6
5
4
3
2
1
0
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Further Information
1 The diagram must be sufficiently accurate for the
intention to be clear.
0 1 2 3 4 5 6 7 8 9 10
x
13
3550
1
14
6
1
15
(C) D A B
1
16
13.8 (cm)
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Marks
impossible
17
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Further Information
2 Award 2 marks for all four lines joined correctly.
A number greater than zero
unlikely
5 or more
even chance
A square number
likely
A multiple of 2
certain
any three correct lines
18
B1
20 (cakes)
55 (cakes) ± 5 inclusive
2
one correct answer in the correct position
19
© UCLES 2022
B1
($)17
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20
Marks
8.2
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Further Information
7.5
6
2
8
75
15
100
20
3
4
30
9
40
12
any two or three correct answers
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15.7
21
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1 All answers correct for the mark.
4.3
12.5
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22
1
100
1
3
5
10
3
4
is equal to 1%
is equal to 30%
Marks
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Further Information
Accept any clear indication of the correct answer.

Do not allow blank boxes as an indication of a 
is equal to 5%

is equal to 75%

B1
23
200 000 and 200
1 Both answers correct for the mark.
24
24 (cm)
1
25
15, 28
1
26(a)
36 (cm2)
1
26(b)
16 (cm)
1
27
7 (oranges)
2
M1
500 − (6 × 40 + 50)
30
sight of ($) 2.10 or ($)2.1 or 210 (cents)
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2 Award 2 marks for all four answers correct.

any three correct answers
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Accept any number of arithmetic errors.
Do not accept calculation with mixed units.
B1
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Further Information
0.875
1
29
answer in range of 700 g−800 g inclusive
1 Accept 0.7−0.8 kg or equivalent fractions inclusive
if units clearly given.
30
4
Sunday
29 (th)
2 Award 2 marks for all three answers correct.
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any two correct answers
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