Download [PDF] 2012 CAIE P2 Mark Schemes 0845 Mathematics Specimen Cambridge Primary Checkpoint

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[PDF] 2012 CAIE P2 Mark Schemes 0845 Mathematics Specimen Cambridge Primary Checkpoint.pdf | Plain Text

This document consists of 8 printed pages. © UCLES 2011 [Turn over UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS Cambridge Primary Checkpoint MATHEMATICS 0845/02 Paper 2 For Examination from 2012 SPECIMEN MARK SCHEME 45 minutes MAXIMUM MARK: 40

2 © UCLES 2011 0845/02/SM/12 Question 1 Part Mark Answer Further Information (a) 1 C (b) 1 A Total 2 Question 2 Part Mark Answer Further Information 1 2 Total 1 Question 3 Part Mark Answer Further Information 1 396 Total 1 Question 4 Part Mark Answer Further Information 1 1 + 3 = 4 or 3 + 1 = 4 and 2 + 3 = 5 or 3 + 2 = 5 Both answers must be given for the award of the mark. Answers may be in either order. Total 1 Question 5 Part Mark Answer Further Information (a) 1 1000 (b) 1 $4000 Total 2

3 © UCLES 2011 0845/02/SM/12 [Turn over Question 6 Part Mark Answer Further Information (a) 1 8 (b) 1 230 Total 2 Question 7 Part Mark Answer Further Information 1 D C B A E Accept any clear indication of a correct order. Total 1 Question 8 Part Mark Answer Further Information (a) 1 cuboid Accept rectangular prism. (b) 1
Accept any indication. Total 2 Question 9 Part Mark Answer Further Information 1 346 Total 1 Question 10 Part Mark Answer Further Information (a) 1 23 (b) 1 9 Total 2

4 © UCLES 2011 0845/02/SM/12 Question 11 Part Mark Answer Further Information (a) 1 –2 and 8 both numbers correct = 1 mark (b) 1 192 and 24 both numbers correct = 1 mark Total 2 Question 12 Part Mark Answer Further Information (a) 1 18 (b) 1 42 Total 2 Question 13 Part Mark Answer Further Information 1 All six cards used once, in any order to correctly sum to 4.71, for example: 325 + 146 471 Do not accept cards used more than once or numbers other than those given. Each vertical placement is interchangeable Total 1 Question 14 Part Mark Answer Further Information 1 (triangle) C Total 1

5 © UCLES 2011 0845/02/SM/12 [Turn over Question 15 Part Mark Answer Further Information 1 50 % 4 % 20 % 25 % 10 % 1 4 1 10 1 2 both numbers correct = 1 mark Total 1 Question 16 Part Mark Answer Further Information (a) 1 = (b) 1 < Total 2 Question 17 Part Mark Answer Further Information 1 17 Do not accept remainders or decimals. Total 1 Question 18 Part Mark Answer Further Information (a) 1 81 × 4 or 54 × 6 or 36 × 9 (b) 1 81 × 4 or 54 × 6 or 36 × 9 Answer must be different to part (a). Total 2

6 © UCLES 2011 0845/02/SM/12 Question 19 Part Mark Answer Further Information 1 5.5 5.56 5.6 5.65 5.66 Total 1 Question 20 Part Mark Answer Further Information 1 9 must be written in both boxes Total 1 Question 21 Part Mark Answer Further Information 1 The diagram must be sufficiently accurate for the intention to be clear. Total 1 Question 22 Part Mark Answer Further Information 1 450 (ml) Total 1

7 © UCLES 2011 0845/02/SM/12 [Turn over Question 23 Part Mark Answer Further Information 1 Explanation that states: odd + odd + odd = odd and 20 is even An example alone is not sufficient for the award of the mark. It must be a general statement in terms of odd and even numbers. Total 1 Question 24 Part Mark Answer Further Information (a) 1 65º (b) 1 180º Total 2 Question 25 Part Mark Answer Further Information 1 1900 (grams) Total 1 Question 26 Part Mark Answer Further Information (a) 1 a square drawn with 3 cm sides (b) 1 169 (cm²) Total 2

8 © UCLES 2011 0845/02/SM/12 Question 27 Part Mark Answer Further Information (a) 1 4 Range is not 6 to 10. (b) 1 10 Total 2 Question 28 Part Mark Answer Further Information 1 ‘NO’ together with an explanation that shows that 20% of 50 = 10 and 50% of 20 = 10 so they are the same. Do not award the mark for ‘NO’ only. Do not award the mark if the explanation includes any mathematically incorrect statement, even if it is combined with a correct statement. Total 1