Download [PDF] April 2018 CAIE P2 Mark Schemes 0845 Mathematics Cambridge Primary Checkpoint

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[PDF] April 2018 CAIE P2 Mark Schemes 0845 Mathematics Cambridge Primary Checkpoint.pdf | Plain Text

This document consists of 12 printed pages. IB18 05_0845_02/4RP © UCLES 2018 [Turn over Cambridge International Examinations Cambridge Primary Checkpoint M ATHEM ATICS 0845/02 Paper 2 April 2018 MARK SCHEME Maximum Mark : 40 IMPORTANT NOTICE Mark Schemes have been issued on the basis of one copy per Assistant examiner and two copies per Team Leader.

0845 /02 Primary Checkpoint Mathematics - Mark Scheme POST-STANDARDISATION April 2018 © UCLES 2018 Page 2 of 13 Mark scheme annotations and abbreviations M1 method mark A1 accuracy mark B1 independent mark FT follow through after error dep dependent oe or equivalent cao correct answer only isw ignore subsequent working soi seen or implied

0845 /02 Primary Checkpoint Mathematics - Mark Scheme POST-STANDARDISATION April 2018 © UCLES 2018 Page 3 of 13 Question Answ er Marks Further Information 1 4076 1 Question Answ er Marks Further Information 2 130 (g) 1 May be on diagram Question Answ er Marks Further Information 3 60 50 10 40 80 20 70 30 2 Award 2 marks for all 5 entries corre ct. Any 2 or 3 sides adding to 120 B1

0845 /02 Primary Checkpoint Mathematics - Mark Scheme POST-STANDARDISATION April 2018 © UCLES 2018 Page 4 of 13 Question Answ er Marks Further Information 4 1 All three lines must be correct with no additional lines for the award of the mark.

0845 /02 Primary Checkpoint Mathematics - Mark Scheme POST-STANDARDISATION April 2018 © UCLES 2018 Page 5 of 13 Question Answ er Marks Further Information 5 1 Question An swer Marks Further Information 6(a) 45 (students) 1 6(b) An explanation that shows more students ride bicycles in week 2, for example: • 15 students ride bicycles in week 1 and 20 students ride bicycles in week 2 1 Must be evaluated. Do not accept just a repeat of the given information, e.g. repeating the value of each symbol. Question Answ er Marks Further Information 7 1 All 3 numbers must be correct for the award of the mark.

0845 /02 Primary Checkpoint Mathematics - Mark Scheme POST-STANDARDISATION April 2018 © UCLES 2018 Page 6 of 13 Question Answ er Marks Further Information 8 2 n orth 3 east 1 north 3 east 1 Question Answ er Marks Further Information 9 2 Award 2 marks for all 3 points correct. Accept points not joined. Ignore interim points if not connected. 2 points correct. B1

0845 /02 Primary Checkpoint Mathematics - Mark Scheme POST-STANDARDISATION April 2018 © UCLES 2018 Page 7 of 13 Question Answ er Marks Furt her Information 10 8 16 20 36 45 54 64 70 1 All 3 must be correct with no wrong answers. Question Answ er Marks Further Information 11 To the nearest whole number 24.6 × 8 197 348 ÷ 7.5 46 5091.5 ÷ 1 7 300 471.9 × 9.1 4294 2 All four must be correct for 2 marks. Do not accept e.g. 4 6.00 300.00 4294.00 2 or 3 correct answers. B1 Question Answ er Marks Further Information 12 8 (fish) 1 Question Answ er Marks Further Information 13 9 (ten ts) 1 Do not accept 8 remainder 2 or 8 9 2 etc. Question Answ er Marks Further Information 14 750 (cm) 1

0845 /02 Primary Checkpoint Mathematics - Mark Scheme POST-STANDARDISATION April 2018 © UCLES 2018 Page 8 of 13 Question Answ er Marks Further Information 15(a) 3340 (cm) 1 15(b) 0.334 (m) 1 Question Answ er Marks Further Infor mation 16(a) Anastasia spins a number smaller than 8 Impossible Unlikely Even chance Likely  Certain Anastasia spins a number that is a multiple of 12 Impossible  Unlikely Even chance Likely Certain 1 Both correct for 1 mark . 16(b) An e vent connected to the spinner with probability of 0.5 e.g.  getting an even number  getting a number less than 6  getting a number greater than 5  getting a factor of 12 1 Do not award the mark for two ex clusive examples given, e.g. “landing on an odd number or an even number.”

0845 /02 Primary Checkpoint Mathematics - Mark Scheme POST-STANDARDISATION April 2018 © UCLES 2018 Page 9 of 13 Question Answ er Marks Further Information 17 1 All 3 lines must be correct for 1 mark.

0845 /02 Primary Checkpoint Mathematics - Mark Scheme POST-STANDARDISATION April 2018 © UCLES 2018 Page 10 of 13 Question Answ er Marks Further Information 18 1 × 42 = 42 2 × 21 = 42 3 × 14 = 42 6 × 7 = 42 2 All 4 calculations correct with no errors . Accept calculations in any order or commutative. 2 or 3 calculations correct with no more than 2 incorrect calculations. or All 4 calculations correct with no more than 2 incorrect calculations. B1 Question Answ er Marks Further Information 19 20 90 1 Both answers required. Question Answ er Marks Further Information 20 (a) A rectangle with a perimeter of 12 cm: 1 × 5 or 2 × 4 or 3 × 3 1 Vertices of rectangle must be placed on a dot. 20 (b) A rectangle with an area of 12 cm²: 1 × 12 or 2 × 6 o r 3 × 4 1 Vertices of rectangle must be placed on a dot .

0845 /02 Primary Checkpoint Mathematics - Mark Scheme POST-STANDARDISATION April 2018 © UCLES 2018 Page 11 of 13 Question Answ er Marks Further Information 21 polygon not a polygon has right angles A F C does not have right angles B D E 2 All 5 letters correct. Do not award mark for a letter in tw o sections. 3 or 4 letters correct. B1 Question Answ er Marks Further Information 22 ($) 4.25 2 Correct method containing any number of arithmetic errors: (1.25 × 25) – 27 M1

0845 /02 Primary Checkpoint Mathematics - Mark Scheme POST-STANDARDISATION April 2018 © UCLES 2018 Page 12 of 13 Question Answ er Marks Further Information 23 Onion Soup Serves 6 60 g butter 3 large onions 1275 ml stock 4½ teaspoons flour 2 All four must be correct . Accept 4.5 teaspoons flour . 2 or 3 correct answers. B1 sight of × 1.5 or equivalent. M1 Question Answ er Marks Further Information 24 ($) 5.25 2 Correct method containing any number of arithmetic errors, for example: 2 × 1.50 + 5 × (3 × 1.50 ÷ 10) M1 sight of 0.45 or 45 B1 Units must be correct if shown.

0845 /02 Primary Checkpoint Mathematics - Mark Scheme POST-STANDARDISATION April 2018 © UCLES 2018 Page 13 of 13 Question Answ er Marks Further Information 25 > and < 1 In the correct order . Question Answ er Marks Further Information 26 1 Question Answ er Marks Further Information 27 (6 × 1.5 + 4.9) × 4 = 55.6 1 Question Answ er Marks Further Information 28 5 (minutes) 56 (seconds) 1 The answer m ust be given in minutes and seconds. Do not accept 5.93 recurring (minutes) or 356 (seconds) .