Cambridge Primary Checkpoint MATHEMATICS 0845/02 Paper 2 April 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 12 pages. IB22 05_0845_02/4RP © UCLES 2022 [Turn over 0845/02 Primary Checkpoint – Mark Scheme PUBLISHED Mark scheme annotations and abbreviations M1 A1 B1 FT dep oe cao isw soi © UCLES 2022 method mark accuracy mark independent mark follow through after error dependent or equivalent correct answer only ignore subsequent working seen or implied Page 2 of 12 April 2022 © UCLES 2022 3 Question 2 Question 1 Question 0845/02 Four thousand, seven hundred and fifty Four thousand, five hundred and five 4550 4055 Page 3 of 12 Four thousand and fifty five 4505 Answer Four thousand, five hundred and fifty Answer 4750 For one correct answer 5500 and 550 Answer Marks Marks B1 Marks Primary Checkpoint – Mark Scheme PUBLISHED 1 Accept any clear indication. Further Information 1 Award 1 mark for 3 correct matches. Further Information 2 Numbers must be in the correct order. Further Information April 2022 © UCLES 2022 7 Question cuboid B Answer C A 6 11 Answer 2 or 3 numbers correct 3 4 D Page 4 of 12 E 9 6:30 pm half past six in the evening likes tennis 8:45 pm quarter to nine at night boys 3:15 am quarter past three in the morning Answer 12:10 pm ten past twelve in the afternoon Answer Marks Marks B1 Marks Marks Primary Checkpoint – Mark Scheme PUBLISHED Question 5 Question 4 Question 0845/02 1 Do not accept cube or prism. Accept ‘rectangular prism’ or ‘square prism’. Accept reasonable misspellings. Further Information 1 Accept any clear indication. Further Information 2 All four numbers placed correctly. Further Information 1 All three must be correct for one mark and must include am or pm. Further Information April 2022 $3.53 10 1 of the animals are sheep. B equilateral triangle A scalene triangle 11 © UCLES 2022 Answer Page 5 of 12 isosceles triangle 2 of the animals are goats. Half of the animals are sheep. 3 C 335 cents 10 out of 30 animals are sheep. Answer Answer 350 cents For 3 correct answers 115 (°) $3.05 Answer Marks B1 Marks Marks Marks Primary Checkpoint – Mark Scheme PUBLISHED Question 10 Question 9 Question 8 Question 0845/02 Further Information Further Information marked 0 All answers must be correct for the award of the mark. Accept isosceles for B. 1 Accept slight variations in spelling. e.g. Do not allow blank space in place of cross or tick 2 Award 2 marks for 4 correct answers. Further Information 1 Only accept this answer. 1 Further Information April 2022 © UCLES 2022 14(b) 14(a) Question 13 Question 12 Question 0845/02 Answer 2 3 4 5 6 x e.g. (3, 2) or (3, 4) or (3, 5) or (3, 6) Page 6 of 12 be shown. 1 1 both points must 2 0 If the line is longer (5, 1) to (5, 3). drawn from Line must be 3 4 5 6 y Answer For 9 and 16 (the squares of the numbers) 3 and 4 (in either order) 22 (rows) Answer Marks B1 Marks Marks Primary Checkpoint – Mark Scheme PUBLISHED Do not accept (3, 3) as this is a rectangle. 1 Accept answers along the line x = 3 that involve fractions e.g. (3, 3.5) even if off the grid e.g. (3, 7). 1 Further Information 2 Accept for 2 marks 3 × 3 and 4 × 4 Or 32 and 42 Further Information 1 Only accept this answer. Further Information April 2022 © UCLES 2022 17 Question 16 Question 15 Question 0845/02 2500 3 or 4 correct 8.2 9.2 Answer 6.6 1.8 Page 7 of 12 0.8 4.7 5.3 2.2 7.8 3.4 6.3 9.1 8.5 4.5 7.4 0.9 1.5 3.7 Chen’s number might contain more thousands • 5.5 2.6 It is only true if they both have three-digit numbers • Answer Chen might have written 4300 and Oliver wrote 850 • An explanation showing that Chen’s number might have a larger digit than Oliver’s in a place value to the left, e.g. Answer Marks B1 Marks Marks Primary Checkpoint – Mark Scheme PUBLISHED Further Information Accept answers written on the diagram. 1 Accept 2400 to 2600 inclusive. Further Information 2 All 5 numbers correct. 1 Further Information April 2022 © UCLES 2022 20 Question 19 Question 18 Question 0845/02 Answer 5 Page 8 of 12 B1 4 Evidence showing the range of the five cards is 4 4 B1 2 Marks B1 Marks Marks Evidence showing 4 as the only mode of the five cards 1 Answer For one correct answer in correct position 0.37 and 6.03 37 (students) Answer Primary Checkpoint – Mark Scheme PUBLISHED Further Information Further Information Each card must contain a positive whole number for B1 to be awarded. e.g. 0 marks Award only one of these. 2 Award 2 marks for all numbers correct in any order. 2 In this order. 1 Further Information April 2022 © UCLES 2022 23 Question 22 Question 21 Question 0845/02 26 (°C) 31 32 33 34 Answer 36 37 38 39 Page 9 of 12 4200 471.9 × 8.9 35 172 2758.4 ÷ 16 Answer 109 416.45 – 307.75 For 2 correct answers 249 35.6 × 7 Rounded to the nearest whole number Answer 40 Marks Marks B1 Marks Primary Checkpoint – Mark Scheme PUBLISHED 1 Do not accept –26 (°C) or 26 – (°C) Further Information Accept any clear indication. 1 Both numbers circled with no extras for the mark. Further Information 2 Award 2 marks for 3 correct answers. Further Information April 2022 © UCLES 2022 27 Question 26 Question 25 Question 24 Question 0845/02 91 90 93 83 73 95 85 75 Answer 94 84 74 96 86 76 97 87 77 98 88 78 or 35 and 30 and 60 70 Answer A straight line measuring 6.7 cm Answer 99 89 79 Page 10 of 12 For evidence of a complete method, e.g.(18 × 36) ÷ 24 27 (cm) 82 81 80 92 72 71 70 Answer Marks Marks M1 Marks Marks Primary Checkpoint – Mark Scheme PUBLISHED Further Information Accept any number of arithmetic errors. 1 Further Information 1 Accept line 6.5 to 6.9 cm inclusive. 2 Further Information Accept any clear indication. 1 All 4 numbers must be circled with no additional numbers for the award of the mark. Further Information April 2022 © UCLES 2022 29 Question 28 Question 0845/02 At least 2 correct D B A C Any 7 sections shaded Answer Answer Page 11 of 12 B1 Marks Marks Primary Checkpoint – Mark Scheme PUBLISHED Further Information Or equivalent. 2 Answers must be in the correct order. 1 Further Information April 2022 0845/02 Primary Checkpoint – Mark Scheme PUBLISHED BLANK PAGE © UCLES 2022 Page 12 of 12 April 2022