05 0845 01 MS 4RP AFP tcm142-654607 [PDF]

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Cambridge Primary Checkpoint MATHEMATICS



0845/01



Paper 1



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_01/4RP © UCLES 2022



[Turn over



0845/01



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



and



Answer



© UCLES 2022



Finish



Start West North East South East South



any order



5



6



3



Answer



Answer



30



Answer



555



4



2



16



28



Answer



2 5 4 1 2 2



Page 3 of 12



27



Marks



Marks



Marks



Marks



Marks



Primary Checkpoint – Mark Scheme PUBLISHED



Question



4



Question



3



Question



2



Question



1



Question



0845/01



Further Information



Further Information



Accept the abbreviations E and S.



1 All instructions must be correct for 1 mark.



1



Further Information



1 Both answers required for the mark. Do not accept other equivalent fractions.



1



Further Information



1 The order of answers must be as stated.



Further Information



April 2022



© UCLES 2022



8



Question



7



Question



6



Question



0845/01



Any 3 or 4 correct entries



not less than 20



less than 20



6 27



12



multiples of 3



Answer



Page 4 of 12



23



17



not multiples of 3



B1



Marks



M1



For evidence of a complete method which includes correct conversions, with any number of arithmetic errors. e.g. 9060 – 850 9.06 – 0.85 8 kg 1060 – 850



Marks



B1



Answer



Marks



For answers given without units e.g. 8 kg 210 or 8.21 or For answer calculated correctly but given with incorrect final units e.g. 8210 kg



8 kg 210 g or 8 210 g or 8.21 kg



48



Answer



Primary Checkpoint – Mark Scheme PUBLISHED



Further Information



2 All 5 entries must be correct.



Further Information



Allow M1 for correct method with wrong units e.g. 9060 – 850 = 8210 kg 9.06 – 0.85 = 8.21 g



Do not accept 960 – 850



2 Answer must have the correct units.



1



Further Information



April 2022



© UCLES 2022



10



Question



9



Question



0845/01



2 3



1



3600 g, 1.2 kg, 900 g, 0.6 kg



Answer



Two correct mixed numbers.



10 3 2 4



1



3



Answer



Page 5 of 12



Marks



B1



Marks



Primary Checkpoint – Mark Scheme PUBLISHED



Any units used must be correct with no misreads.



Accept converted units e.g. 3.6 kg, 1.2 kg, 0.9 kg, 0.6 kg



1 Allow if the numbers or their conversions are ordered correctly with no units shown e.g. 3600 1.2 900 0.6 3600 1200 900 600 3600 1200 0.9 0.6



Further Information



Allow equivalent answers for the fraction element of each mixed number e.g. 3 2/4



2 Award 2 marks for all 3 correct.



Further Information



April 2022



© UCLES 2022



13



Question



12



Question



11



Question



0845/01



45



645 213








12 345



Answer



Page 6 of 12



Marks



Marks



Marks



Primary Checkpoint – Mark Scheme PUBLISHED



1



Further Information



1 Accept slight inaccuracies in the drawing provided the intention is clear.



Further Information



1 Both must be correct for the award of the mark.



Further Information



April 2022



© UCLES 2022



16



Question



15



Question



14



Question



0845/01



3 correct answers



unlikely certain even impossible



304



37  21



37  19



Answer



Answer



Answer



Page 7 of 12



37  20 – 37



37  20  20



37  20 – 19



37  20 – 20



37  20  37



37  20  21



B1



Marks



Marks



Marks



Primary Checkpoint – Mark Scheme PUBLISHED



Further Information 2 Award 2 marks for all four in the right order.



1



Further Information



1 Both lines required.



Further Information



April 2022



216 000 217 000



216 489



215 053



© UCLES 2022



An explanation that the graph does not show individual scores but shows how many students score within each group e.g.



18(b)



Page 8 of 12



An explanation that the graph does not show how many students scored 10 e.g. they could have scored 8 or 9 or 10 or 11



A valid counter example e.g. All 16 students could have scored 8 points on the test.



An explanation that the graph shows that 16 students scored 8 to 11



27 (students)



Answer



215 000



214 598



2 or 3 correct



214 000



215 503



Answer



Marks



B1



Marks



Primary Checkpoint – Mark Scheme PUBLISHED



18(a)



Question



17



Question



0845/01



1



1



Further Information



2 All lines required.



Further Information



April 2022



© UCLES 2022



21



Question



20



Question



19(b)



19(a)



Question



0845/01



2



12 ÷ 5



For 3 correct letters



A C E



5



4 2



Answer



4



17 ÷ 4



2 1



1



Mixed Number 4



2 or 3 correct answers



B D



86 × 20



Answer



43 × 99



9÷2



Division



43 × 20



86 × 99



Page 9 of 12



2.4



4.25



4.5



Decimal



430 – 43 answer not required; ignore if incorrect.



Answer



B1



Marks



B1



Marks



Marks



Primary Checkpoint – Mark Scheme PUBLISHED



2 Award 2 marks for 4 correct letters or clear representation of shapes.



Further Information



2 Accept equivalent answers for the fractional part of each mixed number.



Further Information



1 Any clear indication.



1 Accept 43 + 43 + 43 + 43 + 43 + 43 + 43 + 43 + 43 Accept 473 – 43 – 43 or 473 – 86



Further Information



April 2022



© UCLES 2022



23



Question



22



Question



0845/01



5 8



3



4



Answer



2



1



Answer



16



7



Page 10 of 12



mirror line



this order only



Marks



Marks



Primary Checkpoint – Mark Scheme PUBLISHED



7



16 16 16 16



12 10 8



Further Information



Do not allow misreads.



Or equivalent e.g.



1 Accept slight inaccuracies in the drawing provided the intention is clear.



1



Further Information



April 2022



© UCLES 2022



27



Question



26



Question



25



Question



24



Question



0845/01



false true false



even + odd + odd = odd



odd × odd = odd



odd × odd × odd = even



2



4



One part correct



B and E and 199 (minutes)



45 × 18 = 90 × 9



5



0 . 6 25 8 5.000



Answer



Answer



Answer



Page 11 of 12



true



even × odd = even



Award 1 mark for 3 correct



true



true or false



odd + odd + odd = odd



Answer



B1



Marks



Marks



Marks



B1



Marks



Primary Checkpoint – Mark Scheme PUBLISHED



Further Information



Do not accept 3 hours 19 (minutes)



2 Both B and E are necessary.



1



Further Information



i.e. no carry figures.



1 Accept correct answer with or without working.



Further Information



2 Award 2 marks for all 4 correct. Accept any clear indication of the correct answer.



Further Information



April 2022



© UCLES 2022



29



Question



28



Question



0845/01



8+9+3 8 + 10 + 2 9+9+2







31.2 – 10 + 0.1



31.2 – 9.9



Answer







12.4 + 4 – 0.1



12.4 + 3.9



Page 12 of 12







13.4 – 7 – 0.2



13.4 – 6.8



 or 



Strategy



Calculation



Answer



Marks



Marks



Primary Checkpoint – Mark Scheme PUBLISHED



1 All three must be correct for the award of the mark.



Further Information



1 All 3 answers must be correct for 1 mark.



Further Information



April 2022