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Ma Mathematics tests KEY STAGE Mark schemes 2 LEVELS 2010 3–5 Test A, Test B and Mental mathematics National curriculum assessments Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk QCDA wishes to make its publications widely accessible. Please contact us if you have any specific accessibility requirements. First published 2010 © Qualifications and Curriculum Authority 2010 ISBN 978-1-84962-211-0 Reproduction, storage, adaptation or translation, in any form or by any means, of this publication is prohibited without prior written permission of the publisher, unless within the terms of licences issued by the Copyright Licensing Agency. Excerpts may be reproduced for the purpose of research, private study, criticism or review, or by educational institutions solely for educational purposes, without permission, provided full acknowledgement is given. The Qualifications and Curriculum Authority (QCA) is currently operating certain of its non-regulatory functions under the name Qualifications and Curriculum Development Agency (QCDA). The legal entity remains QCA, established under the Education Act 1997. QCA is an exempt charity under the Charities Act 1993. Printed in Great Britain by QCDA under the authority and superintendence of the Controller of Her Majesty’s Stationery Office and Queen’s Printer of Acts of Parliament. Qualifications and Curriculum Development Agency 83 Piccadilly London W1J 8QA www.qcda.gov.uk Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 2010 KS2 Mathematics tests mark schemes Marking the mathematics tests As in 2009, external markers, employed by the external marking agencies under contract to QCDA, will mark the test papers. The markers will follow the mark schemes in this booklet, which is supplied to teachers for information. This booklet contains the mark schemes for the levels 3–5 tests A, B and mental mathematics. Level threshold tables will be available on the QCDA website (http://testsandexams.qcda.gov.uk/18954.aspx) on 30 June 2010. General guidance The structure of the mark schemes The marking information for each question is set out in the form of tables, which start on page 6 of this booklet. The ‘question’ column on the left-hand side of each table provides a quick reference to the question number and the question part. The ‘mark’ column indicates the total number of marks available for each question part. On some occasions the symbol may be shown in the mark column. The ‘U’ indicates that there is a Using and applying mathematics element in the question. The number, 1, shows the number of marks attributed to using and applying mathematics in this question. The ‘requirement’ column may include two types of information: statement of the requirements for the award of each mark, with an indication of a whether credit can be given for correct working examples of some different types of correct response. The ‘additional guidance’ column indicates alternative acceptable responses, and provides details of specific types of response which are unacceptable. Other guidance, such as the range of acceptable answers, is provided as necessary. Additionally, for the mental mathematics test, general guidance on marking is given on page 17, together with a ‘quick reference’ mark scheme. Applying the mark schemes In order to ensure consistency of marking, the most frequent procedural queries are listed on pages 2 and 3 along with the action the marker will take. This is followed by further guidance on pages 4 and 5 relating to the marking of questions that involve money, time and other measures. Unless otherwise specified in the mark scheme, markers will apply the following guidelines in all cases. Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 1 2010 KS2 Mathematics tests mark schemes General guidance What if… Marking procedure The pupil’s response is numerically or algebraically equivalent to the answer in the mark scheme. Markers will award the mark unless the mark scheme states otherwise. The pupil’s response does not match closely any of the examples given. Markers will use their judgement in deciding whether the response corresponds with the statement of the requirements given in the ‘requirement’ column. Reference will also be made to the additional guidance and, if there is still uncertainty, markers will contact the supervising marker. The pupil has responded in a non-standard way. Calculations, formulae and written responses do not have to be set out in any particular format. Pupils may provide evidence in any form as long as its meaning can be understood. Diagrams, symbols or words are acceptable for explanations or for indicating a response. Any correct method of setting out working, however idiosyncratic, will be accepted. There appears to be a misreading affecting the working. This is when the pupil misreads the information given in the question and uses different information without altering the original intention or difficulty level of the question. For each misread that occurs, one mark only will be deducted. In one-mark questions – 0 marks are awarded. In two-mark questions that have a method mark – 1 mark will be awarded if the correct method is correctly implemented with the misread number. No answer is given in the expected place, but the correct answer is given elsewhere. Where a pupil has shown understanding of the question, the mark(s) will be given. In particular, where a word or number response is expected, a pupil may meet the requirement by annotating a graph or labelling a diagram elsewhere in the question. The pupil’s answer is correct but the wrong working is shown. The response in the answer box is wrong, but the correct answer is shown in the working. A correct response will always be marked as correct. Where appropriate, detailed guidance will be given in the mark scheme, which markers will follow. If no guidance is given, markers will examine each case to decide whether: he incorrect answer is due to a t transcription error he pupil has continued to give redundant t extra working which does not contradict work already done If so, the mark will be awarded. he pupil has continued to give redundant t extra working which does contradict work already done. 2 If so, the mark will be awarded. If so, the mark will not be awarded. Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 2010 KS2 Mathematics tests mark schemes General guidance What if… Marking procedure The correct response has been crossed out and not replaced. Any legible crossed-out work that has not been replaced will be marked according to the mark scheme. If the work is replaced, then crossed-out work will not be considered. More than one answer is given. If all answers are correct (or a range of answers is given, all of which are correct), the mark will be awarded unless prohibited by the mark scheme. If both correct and incorrect responses are given, no mark will be awarded. The answer is correct but, in a later part of the question, the pupil has contradicted this response. A mark given for one part will not be disallowed for working or answers given in a different part, unless the mark scheme specifically states otherwise. The pupil has drawn lines which do not meet at the correct point. Markers will interpret the phrase ‘slight inaccuracies in drawing’ to mean ‘within or on a circle of radius 2mm with centre at the correct point’. within the circle accepted on the circle accepted outside the circle not accepted Recording marks awarded on the test paper In the margin, alongside each question part, there is a marking space for each question part. Depending on the type of response made to each part of each question by the pupil, the external marker will record one of the following in each marking space: ‘1’ for a correct response ‘0’ for an incorrect response ‘−‘ if no response is made. A two-mark question which is correct will have ‘1’ entered in both marking spaces. A two-mark question which is incorrect, but which has sufficient evidence of working or method as required by the mark scheme, will have ‘1’ entered in the first marking space and ‘0’ in the second. Otherwise ‘0’ will be entered in both marking spaces, unless no response is made in which case ‘−’ will be entered in both marking spaces. For the written tests, the total number of marks gained on each double page will be written in the space at the bottom of the right-hand page. For all of the tests, the total number of marks gained on each paper will be recorded on the front of the test paper. Test A carries a total of 40 marks. Test B also carries a total of 40 marks. The mental mathematics test carries a total of 20 marks. The 2010 key stage 2 mathematics tests and mark schemes were developed by the Test Development Team at Pearson Research and Assessment on behalf of QCDA. Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 3 2010 KS2 Mathematics tests mark schemes General guidance Marking specific types of question – summary of additional guidance Responses involving money Accept Do not accept Where the £ sign is given £3.20 £7 £7.00 for example: Any unambiguous indication of the correct amount, eg Incorrect placement of pounds or pence, eg £3.20, £7 £3.20p £320 £3 20 pence £320p £3 20 £3,20 Incorrect placement of decimal point, or incorrect use or omission of 0, eg £3-20 £3.2 £3:20 £3 200 £ £32 0 £3-2-0 Where the p sign is given 40p Any unambiguous indication of the correct amount, eg Incorrect or ambiguous use of pounds or pence, eg for example: £0.40p 0.40p 40p £40p p Where no sign is given 320p for example: Any unambiguous indication of the correct amount, eg Incorrect or ambiguous use of pounds or pence, eg £3.20, 40p £3.20p £0.40p £320 £40 £3 20 pence £.40p £320p £40p £3 20 £.40 £3.2 0.4 £3,20 40 3.20p 0.40p £3-20 0.40 £3.20 40p £0.40 £3:20 3.20 320 3 pounds 20 4 Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 2010 KS2 Mathematics tests mark schemes General guidance Responses involving time Accept Do not accept A time interval 2 hours 30 minutes Any unambiguous, correct indication, eg Incorrect or ambiguous time interval, eg for example: 1 22 hours 2.30 2.5 hours 2-30 2h 30 2,30 2h 30 min 230 2 30 2.3 150 minutes 2.3 hours 150 2.3h 2 hours 30 minutes Digital electronic time, ie 2:30 2h 3 2.30 min A specific time 8:40am for example: twenty to nine 8:40am, 17:20 Any unambiguous, correct indication, eg Incorrect time, eg 08.40 8.4am 8.40 8.40pm 0840 8 40 Incorrect placement of separators, spaces, etc or incorrect use or omission of 0, eg 8-40 840 8,40 8:4:0 Unambiguous change to 12 or 24 hour clock, eg 8.4 17:20 as 5:20pm or 17:20pm 084 8:40 Responses involving measures Accept Where units are given (eg kg, m, l) 8.6kg for example: 8.60kg 8.6kg Do not accept 8.6000kg kg Any unambiguous indication of the correct measurement, eg Incorrect or ambiguous use of units, eg 8600kg 8kg 600g Note If a pupil leaves the answer box empty but writes the answer elsewhere on the page, then that answer must be consistent with the units given in the answer box and the conditions listed above. If a pupil changes the unit given in the answer box, then their answer must be equivalent to the correct answer using the unit they have chosen, unless otherwise indicated in the mark scheme. Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 5 2010 KS2 Mathematics tests mark schemes Test A questions 1–6 Question 1 Requirement 1m Prices in order, as shown: £0.27 2 Mark 72p £2.07 £2.70 Accept use of equivalent units, eg 27p. Accept answers with missing or incorrect units. £7.20 23 AND 33 Additional guidance 1m Numbers may be given in either order. U1 3a Cheetah 1m Accept unambiguous abbreviations or recognisable misspellings. 3b Wildcat AND Leopard 1m Names may be given in either order. Accept unambiguous abbreviations or recognisable misspellings. Do not accept ‘L’ for Leopard. 1m 4a 40p 4b Award TWO marks for the correct answer of 65p OR £0.65 Up to 2m If the answer is incorrect, award ONE mark for evidence of appropriate working, eg Accept for ONE mark £65 OR £65p OR 0.65p as evidence of appropriate working. 120 + 35 = 155 Working must be carried through to reach an answer for the award of ONE mark. 155 – 90 = wrong answer 5 1m Times in order as shown: 48 hours 24 days 1 month 10 weeks Accept unambiguous abbreviations or recognisable misspellings. Accept use of equivalent units, eg 2 days. Accept answers with missing or incorrect units. 6 Award TWO marks for the diagram completed as shown: 6 3 24 18 4 8 Up to 2m 10 40 32 If the answer is incorrect, award ONE mark for two numbers correct OR 6 3 18 n 8 24 32 10 10n where n is any number. 6 Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 2010 KS2 Mathematics tests mark schemes Test A questions 7–12 Question Requirement Mark Additional guidance 7 144 1m 8a B AND F 1m Letters may be given in either order. 8b C AND D AND G 1m Letters may be given in any order. 9 Jack 1m Accept unambiguous abbreviations or recognisable misspellings. 10 Award TWO marks for the table completed as shown: odd a 3-digit number not a 3-digit number 990 25 49 Do not accept numbers written in more than one section. not odd 247 Up to 2m 7002 If the answer is incorrect, award ONE mark for four numbers placed correctly. 11 3804 12 Award TWO marks for the correct answer of 6 1m Up to 2m If the answer is incorrect, award ONE mark for evidence of appropriate working, eg Accept for ONE mark an answer of £6 as evidence of appropriate working. 2.50 × 2 = 5 Working must be carried through to reach an answer for the award of ONE mark. 14 – 5 = 9 9 ÷ 1.50 = wrong answer OR 14 – 2.50 – 2.50 = 9 1.50 × wrong number = 9 Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 7 2010 KS2 Mathematics tests mark schemes Test A questions 13–15 Question Requirement Mark 13a 5 1m 13b 15 1m Additional guidance U1 14 1 1 + 3 1 2 2 × 2 1m Numbers in brackets may be given in either order. Accept equivalent fractions or decimals. Do not accept use of the same card twice, eg OR 1 2 15 If the answer is incorrect, award the mark if the answers to 13a and 13b total 20 + 3 1 2 2 1 + 2 1 2 2 × 2 1 2 Award TWO marks for the correct answer of 30p. If the answer is incorrect, award ONE mark for evidence of appropriate working, eg × 2 Up to 2m U1 Working must be carried through to reach an answer for the award of ONE mark. 10p × 2 = 20p £1 − 20p = 80p 80p ÷ 4 = 20p 20p + 10p = wrong answer OR £1 ÷ 2 = 50p 50p − 10p = 40p 40p ÷ 2 = 20p 20p + 10p = wrong answer 8 Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 2010 KS2 Mathematics tests mark schemes Test A questions 16–18 Question 16 Requirement Award TWO marks for diagrams ticked or crossed as shown: Mark Up to 2m Additional guidance Accept alternative unambiguous indications, eg Y or N. For TWO marks, accept: For TWO marks accept lines of symmetry drawn on the correct two shapes and the other two shapes left blank. If the answer is incorrect, award ONE mark for three diagrams ticked or crossed correctly. 17 18 + 16 + 6 1m Numbers may be given in any order. OR 18 + 14 + 8 OR 18 + 12 + 10 OR 16 + 14 + 10 18a −75 in the first box 1m Do not accept 75− 18b −200 in the second box 1m Do not accept 200− Accept a number 125 less than the answer to 18a, provided the answer to 18a is negative. Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 9 2010 KS2 Mathematics tests mark schemes Test A questions 19–21 Question 19 Requirement Mark Additional guidance 1m Accept slight inaccuracies in drawing (see page 3 for guidance). 1m Line drawn from A to one of the two dots marked as shown: Accept alternative unambiguous indications, eg fraction ticked, crossed or underlined. B A OR B A 20 Fraction circled as shown: 7 8 21 2 5 1 3 5 8 3 6 Award TWO marks for the correct answer of 18 If the answer is incorrect, award ONE mark for evidence of appropriate working, eg Up to 2m Working must be carried through to reach an answer for the award of ONE mark. 50 ÷ 2 = 25 25 − 7 = wrong answer OR 7 × 2 = 14 50 − 14 = 36 36 ÷ 2 = wrong answer 10 Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 2010 KS2 Mathematics tests mark schemes Test A questions 22–26 Question 22a Requirement Mark 13 Answer in the range 100 to 1 inclusive 5 1m Additional guidance 1 1 Range includes 6 and 7 Accept decimals or percentages. (0.13 to 0.2 inclusive) (13% to 20 % inclusive) Answer in the range 500 to 800 inclusive 1m 23 101 1m 24 Diagram completed as shown: 1m 22b Accept slight inaccuracies in drawing (see page 3 for guidance). B A Award TWO marks for the correct answer of 23 Up to 2m If the answer is incorrect, award ONE mark for evidence of appropriate working, eg 25 U1 Working must be carried through to reach an answer for the award of ONE mark. 1m Do not accept vague or incomplete explanations, eg: 2×2=4 4+5=9 9 × 2 = 18 18 + 5 = wrong answer 26 An explanation which recognises that 40% of the 1 number must be multiplied by 2 2, or equivalent, eg: U1 ‘You multiply by 2.5’ ‘Start with the original number and find 40% of it’ ‘Halve it and multiply by 5’ ‘Find 10% and multiply by 10’ ‘Divide by 4 to get 10% and then multiply by 10’ ‘Divide by 4 to find 10% and then you can find 100%’ ‘Divide by 40 then multiply by 100’ ‘Find 1% and multiply by 100’ ‘If you had 100, quarter of 100 is 25, then times by 10 to get 250’ ‘If you had 20 it would be 50’ ‘Add 60%’ ‘Double it and add half of it’. Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 11 2010 KS2 Mathematics tests mark schemes Test B questions 1–5 Question 1 Requirement Mark Award TWO marks for the four lines drawn as shown: Up to 2m Do not award any marks if two or more incorrect lines are drawn. Lines need not touch the boxes, provided the intention is clear. 110 + 230 100 357 – 149 Additional guidance 200 62 × 8 30 0 400 777 – 679 50 0 801 – 444 If the answer is incorrect, award ONE mark for three correct lines drawn AND not more than one incorrect line drawn. 2a 150 1m 2b 2 1m 115 OR 151 OR 511 1m OR U1 3 Accept A AND D in either order. 133 OR 313 OR 331 4 Diagram completed as shown: 1m Accept slight inaccuracies in drawing (see page 3 for guidance). Shape need not be shaded. mirror line 5a 4 hours 1m The answer is a time interval (see page 5 for guidance). 5b Saturday 1m Accept unambiguous abbreviations or recognisable misspellings. Accept ‘10am to 5:30pm’. 1 Accept 72 hours. 5c 12 35 minutes Sourced from SATs-Papers.co.uk 1m The answer is a time interval (see page 5 for guidance). http://www.SATs-Papers.co.uk 2010 KS2 Mathematics tests mark schemes Test B questions 6–11 Question Requirement Mark Additional guidance 1m 6a 5 6b Award TWO marks for the correct answer of £2.85 Up to 2m If the answer is incorrect, award ONE mark for evidence of appropriate method, eg Accept for ONE mark £285 OR £285p as evidence of appropriate method. 0.55 × 3 = 1.65 Answer need not be obtained for the award of ONE mark. 1.20 + 1.65 7 An explanation which recognises that 5 is a quarter of 20, the total number of balloons, eg: ‘ 1 are red, 1 are blue and half are yellow’ 4 4 1m No mark is awarded for circling ‘Yes’ alone. U1 Do not accept vague or incomplete explanations, eg: ‘5 are red, 5 are blue and 10 are yellow so that is a quarter’ ‘A quarter of 20 is 5’ ‘5 out of 20’ ‘There are 20 altogether’ ‘There are 20 balloons altogether and 5 are red so she is correct’. ’Add all the balloons up and divide by 4’ If ‘No’ is circled but a correct, unambiguous explanation is given, then award the mark. 8 1m Three multiples of 3, eg: 3 6 2 4 5 7 Multiples may be given in any order. U1 Digits may be in either order, eg 24 OR 42 Do not accept digits used more than once. OR 6 Do not accept digits other than those shown. 3 7 2 5 4 9a 3 1m Do not accept a list of years. 9b 2004 AND 2007 AND 2008 1m Years may be given in any order. U1 10 325 11 Award TWO marks for diagrams ticked or crossed as shown: 1m Up to 2m Accept alternative unambiguous indications, eg Y or N. For TWO marks, accept: If the answer is incorrect, award ONE mark for three diagrams ticked or crossed correctly. Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 13 2010 KS2 Mathematics tests mark schemes Test B questions 12–16 Question Requirement 12 6 Mark 2 × 8 4 × 8 1m 4 Additional guidance Numbers may be given in either order. 2 OR 6 13 Award TWO marks for the correct answer of 99 Up to 2m If the answer is incorrect, award ONE mark for evidence of appropriate method, eg Answer need not be obtained for the award of ONE mark. 36 – 25 = 11 11 × 9 OR (36 − 25) × 9 14 1m Diagram completed as shown: y Accept slight inaccuracies in drawing (see page 3 for guidance). 7 6 5 4 3 2 1 0 0 1 2 3 4 5 6 7 8 9 x 15a 1m 15b 46p 1m 16a C AND D 1m Letters may be given in either order. 16b 14 16 A AND D 1m Letters may be given in either order. Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 2010 KS2 Mathematics tests mark schemes Test B questions 17–21 Question Requirement Mark Additional guidance 17a Answer in the range of 8:40pm to 8:50pm inclusive 1m The answer is a specific time (see page 5 for guidance). 17b 3 1m Do not accept −3 Award TWO marks for the correct answer of 45 Up to 2m If the answer is incorrect, award ONE mark for evidence of appropriate method, eg: 18 U1 Answer need not be obtained for the award of ONE mark. Sarah and Amy must weigh the same ... 70 ÷ 2 = 35 80 – 35 OR 80 – 70 = 10 70 ÷ 2 = 35 35 + 10 Liam must weigh 10kg more than Sarah ... OR 80 + 80 = 160 160 – 70 = 90 90 ÷ 2 Add the bottom two rows and subtract the top ... OR Add all three rows and halve the total ... 80 + 80 + 70 = 230 230 ÷ 2 = 115 115 – 70 19 Award TWO marks for the diagram completed as shown: Up to 2m Accept slight inaccuracies in drawing provided the intention is clear. Circle and square need not be shaded. If the answer is incorrect, award ONE mark for two shapes correct and no more than one incorrect. 20 126 1m 21 Measurements circled as shown: 1m 4 centimetres 4 inches 10 kilometres Accept alternative unambiguous indications, eg measurements ticked, crossed or underlined. 10 miles 2 litres 5 grams 2 pints 5 pounds Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 15 2010 KS2 Mathematics tests mark schemes Test B questions 22–24 Question 22 Requirement Mark Award TWO marks for three rows ticked correctly as shown: less than 1000 equal to 1000 Additional guidance Up to 2m Accept alternative unambiguous indications, eg û or Y. Up to 2m Accept equivalent or unconventional notation, eg more than 1000 5 × 15 × 25 16 × (80.3 − 17.8) 3888 ÷ (4.32 − 0.57) (32 − 5.7) × (32 + 5.7) If the answer is incorrect, award ONE mark for two rows ticked correctly. 23 Award TWO marks for all three expressions correct, eg k–2 2k + 3 k + k + 3 OR 3 + 2 × k k 1 2 6+ k 2 + 6 OR 6 + k ÷ 2 If the answer is incorrect, award ONE mark for two expressions correct. 24 An explanation which correctly compares the contents of the two bags, eg: ‘In bag A half of the marbles are blue, but in bag B more are red than blue’ ‘In A it’s fifty-fifty, but in B red is more likely’ ‘Less than half of the marbles in B are blue, but in A half are blue’. 16 Sourced from SATs-Papers.co.uk 1m No mark is awarded for circling ‘A’ alone. U1 Do not accept vague or incomplete explanations, eg: ‘A is more likely even though there are more blues in B’ ‘A has an even chance’. If ‘B’ is circled but a correct, unambiguous explanation is given, then award the mark. http://www.SATs-Papers.co.uk 2010 KS2 Mathematics tests mark schemes Mark scheme for the mental mathematics test Applying the mark scheme Please note that pupils will not be penalised if they record any information given in the question or show their working. Markers will ignore any annotation, even if in the answer space, and mark only the answer. Markers will accept an unambiguous answer written in the stimulus box, or elsewhere on the page. Full mark scheme information is given on page 19. In addition, a ‘quick reference’ mark scheme is provided on page 18. This is presented in a similar format to the pupil’s answer sheet. General guidance The general guidance for marking the written tests also applies to marking the mental mathematics test. In addition, the following principles apply. 1. Unless stated otherwise in the mark scheme, accept answers written in words, or a combination of words and figures. 2. Where units are specified, they are given on the answer sheet. Pupils are not penalised for writing in the units again. 3. Where answers are required to be ringed, do not accept if more than one answer is ringed, unless it is clear which is the pupil’s intended answer. Accept also any other way of indicating the correct answer, eg underlining. Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 17 Mental mathematics 2010 quick reference mark scheme Practice question 11 Time: 5 seconds 1 41 2 12 20 £ 5.40 Do not accept £5.4 300 5 20 OR OR 7 28 13 ° 14 3 Do not accept fractions or percentages 0.1 4 any equivalent fraction 34 15 10 cm 9 Time: 15 seconds 5 7500 16 92 17 0.36 3.6 Time: 10 seconds 6 20 7 775 8 82 9 10 18 36 360 3600 1 50 Accept equivalent fractions or decimals g 6.4 Sourced from SATs-Papers.co.uk 18 19 20 9 hours Any multiple of 20 greater than 100, eg 120 OR 200 252 http://www.SATs-Papers.co.uk 2010 KS2 Mathematics tests mark schemes Mental mathematics questions 1–20 Question Requirement Mark 1 41 1m 2 300 1m 3 0.1 1m 4 9 1m 5 7500 1m 6 20 1m 7 775 1m 8 81 2 1m 9 50 g 1m 10 6.4 1m 11 20 1m 12 £5.40 1m 13 5 7 14 34° 1m 15 10 cm 1m 16 92 Additional guidance 1m 17 20 OR 28 OR any equivalent fraction 0.36 3.6 36 Do not accept fractions or percentages. Accept equivalent fractions or decimals. Do not accept £5.4 1m 1m 360 Accept alternative unambiguous indications, eg underlining. Do not accept if more than one answer is indicated unless the intention is clear. 3600 18 9 hours 1m 19 Any multiple of 20 greater than 100, eg 120 OR 200 1m 20 252 1m Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk 19 Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk Sourced from SATs-Papers.co.uk http://www.SATs-Papers.co.uk Qualifications and Curriculum Development Agency 83 Piccadilly, London W1J 8QA Telephone 0300 303 3013 Textphone 0300 303 3012 Fax 0300 303 3014 Email assessments@qcda.gov.uk www.qcda.gov.uk/tests Sourced from SATs-Papers.co.uk For more copies QCDA Orderline, PO Box 29, Norwich NR3 1GN Tel: 0300 303 3015 Fax: 0300 303 3016 Email: orderline@qcda.gov.uk Website: orderline.qcda.gov.uk QCDA/10/4477 (Mark schemes pack) http://www.SATs-Papers.co.uk298173