[PDF] 2010 Key Stage 2 Year 6 - Mathematics Test A B Mental Levels 3-5 Mark Schemes.pdf | Plain Text

National curriculu\Sm assessments 2010 Ma Mathematics tests Mark schemes Test A, Test B and Mental mathematics KEY STAGE 2 LEVELS 3–5

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2010 KS2 Mathematic\Ss tests mark scheme\Ss 1 Marking the mathemat\Sics tests As in 2009, external \amarkers, employed b\ay the external marki\ang agencies under con\atract to Q\bDA, will mark t\ahe test papers. The\a markers will follow\a the mark schemes i\an this booklet, which is s\aupplied to teachers\a for information. This booklet contains\a the mark schemes f\aor the levels 3–5 t\aests A, B and mental\a mathematics. Level \athreshold tables will \abe available on the Q\a\bDA website (http://testsandexam\as.qcda.gov.uk/18954.aspx) on 30\a June 2010. General gu\bdance The structure of the mark sche\Vmes The marking informati\aon for each question \ais set out in the f\aorm of tables, which\a start on page 6 of this boo\aklet. The ‘quest\bon’ column on the left\a-hand side of each t\aable provides a quick reference to the question\a number and the ques\ation part. The ‘mark’ column indicates the\a total number of mark\as available for each \aquestion part. On som\ae occasions the symbol \a may be shown in the\a mark column. The ‘U\a’ indicates that the\are is a Using and applying\’ mathematics element in the que\astion. The number, 1, shows the number of marks attr\aibuted to using and \aapplying mathematics\a in this question. The ‘requ\brement’ column may include\a two types of inform\aation: a statement of the r\aequirements for the award of each mark, with\a an indication of whether credit can be given fo\ar correct working examples of some dif\aferent types of correct response. The ‘add\bt\bonal gu\bdance’ column indicates al\aternative acceptable\a responses, and provides details of sp\aecific types of response which are unacceptable. Othe\ar guidance, such as the range of\a acceptable answers,\a is provided as necessary. Additionally, for the mental mat\ahematics test, gene\aral guidance on marki\ang is given on page 17, together w\aith a ‘quick reference’ mark scheme. \a Apply\bng the mark sc\Vhemes In order to ensure consistency of mark\aing, the most frequent procedural queries are listed on pages 2 and\a 3 along with the ac\ation the marker will\a take. This is foll\aowed by further guidance on \apages 4 and 5 relating to the marki\ang of questions that \ainvolve money, time and other mea\asures. Unless otherwis\ae specified in the m\aark scheme, markers will apply \athe following guidel\aines in all cases.

What \bf… Mark\bng procedure The pupil’s response is numerically or alge\’braically equi\balent to the a\’nswer in the mark scheme. Markers will award the mark unless t\ahe mark scheme stat\aes otherwise. The pupil’s response does not match closely \’any of the examples gi\ben. Markers will use th\aeir judgement in de\aciding whether the \aresponse corresponds with the statement of the requirements given in the \a‘requirement’ column. Refer\aence will also be made to the additiona\al guidance and, if t\ahere is still uncertai\anty, markers will conta\act the supervising marker. The pupil has responded in a non-standard way. \balculations, formulae\a and written responses do not have \ato be set out in any \aparticular format. Pupils may provide evidence in any\a form as long as its \ameaning can be unders\atood. Diagrams, symbols or words are acceptable for exp\alanations or for indic\aating a response. Any correct method of setting ou\at working, however i\adiosyncratic, will b\ae accepted. There appears to be a misreading affecting the working. This is when the pu\apil misreads the information \agiven in the questi\aon and uses different information without al\atering the original \aintention or difficulty level of the\a question. For each \a misread that occurs, one \amark only will be de\aducted. In one-mark questions\a – 0 marks are awarded. In two-mark questions\a that have a method \amark – 1 mark will \abe awarded if the correct method is correctly implemented w\aith the misread number. No answer is gi\ben \’in the expected place\’, but the correct answer is gi\ben elsewhere. Where a pupil has shown \aunderstanding of the \aquestion, the mark(s\a) will be given. In\a particular, where a word or number response is expected\a, a pupil may meet \athe requirement by annotating a graph or labelling \aa diagram elsewhere in the question. The pupil’s answer is correct but the wrong working is shown. A correct response will always \abe marked as correct. The response in the ans\’wer box is wrong, but the correct answer is shown\’ in the working. Where appropriate, detailed gu\aidance will be given in the mark sc\aheme, which markers\a will follow. If no guidance is \agiven, markers will\a examine each case to \adecide whether: „ the incorrect answer is due t\ao a transcription error „ the pupil has contin\aued to give redundant extra working which \adoes not contradict work already done „ the pupil has contin\aued to give redundant extra working which \adoes contradict work \a already done. If so, the mark w\bll be awarded. If so, the mark w\bll be awarded. If so, the mark w\bll not be awarded. 2010 KS2 Mathematic\Ss tests mark scheme\Ss \beneral guidance 2

2010 KS2 Mathematic\Ss tests mark scheme\Ss \beneral guidance What \bf… Mark\bng procedure The correct response has been crossed out and not replaced. Any legible crossed-out work that \ahas not been replaced will be mar\aked according to the mark scheme. If the work\a is replaced, then crossed-out work will \anot be considered. More than one answer is gi\ben. If all answers are correct (or a range of ans\awers is given, all \aof which are correct), the mark will\a be awarded unless prohibited by the mar\ak scheme. If both c\aorrect 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 r\’esponse. A mark given for one \apart will not be dis\aallowed for working o\ar answers given in a \adifferent part, unless the mark sch\aeme specifically stat\aes otherwise. The pupil has drawn\’ lines which do not meet \’at the correct point. Markers will interp\aret the phrase ‘slig\aht inaccuracies in d\arawing’ to mean ‘with\ain or on a circle of radius 2mm with cen\atre at the correct point’. within the cir cle accepted on the circle accepted outside the cir cle not accepted Record\bng marks awarded on the test pap\Ver In the margin, alongside each q\auestion part, there is a marking space\a for each question p\aart. Depending on the typ\ae of response made to each \apart of each questio\an by the pupil, the\a external marker will record one of the followin\ag in each marking sp\aace: ‘1’ for a correct response ‘0’ for an incorrect response ‘−‘ if no response is made. A two-mark question \awhich is correct will have ‘1’ e\antered in both marking s\apaces. A two-mark question which is i\ancorrect, but which has \asufficient evidence of w\aorking or method as r\aequired by the mark scheme, wi\all have ‘1’ entered in the first marki\ang space and ‘0’ in t\ahe second. Otherwis\ae ‘0’ will be entered in both marking s\apaces, unless no response is made in w\ahich case ‘−’ will \abe entered in both marking s\apaces. For the written tes\ats, the total number\a of marks gained on e\aach double page will\a be written in the \a space at the bottom \aof the right-hand pa\age. For all of the t\aests, the total numb\aer of marks gained on each paper will b\ae recorded on the front of the test pape\ar. Test A carries a tota\al of 40 marks. Test B also carries a\a total of 40 marks. \aThe mental mathemati\acs test carries a total\a of 20 marks. The 2010 key stage \a2 mathematics tests\a and mark schemes we\are developed by the \a Test Development Team at Pearson Resear\ach and Assessment on \abehalf of Q\bDA. 3

2010 KS2 Mathematic\Ss tests mark scheme\Ss \beneral guidance 4 Mark\bng spec\bfic type\Vs of quest\bon – summ\Vary of add\bt\bonal gu\b\Vdance Responses involvin\ g money Accept Do not accept Where the £ s\bgn \bs g\bven for example: £3.20, £7 £ £3.20 £7 £7.00 Any unambiguous indic\aation of the correct amount, eg £3.20p £3 20 pence £3 20 £3,20 £3-20 £3:20 Incorrect placement of pou\ands or pence, eg £320 £320p Incorrect placement of dec\aimal point, or incorr\aect use or omission of 0, eg £3.2 £3 200 £32 0 £3-2-0 Where the p s\bgn \bs g\bven for example: 40p p 40p Any unambiguous indic\aation of the correct amount, eg £0.40p Incorrect or ambiguous use\a of pounds or pence, \aeg 0.40p £40p Where no s\bgn \bs g\bven for example: £3.20, 40p £3.20 40p 320p £0.40 Any unambiguous indic\aation of the correct amount, eg £3.20p £0.40p £3 20 pence £.40p £3 20 £.40 £3,20 40 £3-20 0.40 £3:20 3.20 320 3 pounds 20 Incorrect or ambiguous use\a of pounds or pence, \aeg £320 £40 £320p £40p £3.2 0.4 3.20p 0.40p

2010 KS2 Mathematic\Ss tests mark scheme\Ss \beneral guidance 5 Responses involvin\ g time Accept Do not accept A t\bme \bnterval for example: 2 hours 30 minutes2 hours 30 minutes Any unambiguous, corr\aect indication, eg 2 1 2 hours 2.5 hours 2h 30 2h 30 min 2 30 150 minutes 150 Digital electronic time, ie 2:30 Incorrect or ambiguous tim\ae interval, eg 2.30 2-30 2,30 230 2.3 2.3 hours 2.3h 2h 3 2.30 min A spec\bfic t\bme for example: 8:40am, 17:20 8:40am 8:40 twenty to nine Any unambiguous, corr\aect indication, eg 08.40 8.40 0840 8 40 8-40 8,40 Unambiguous change to\a 12 or 24 hour clock\a, eg 17:20 as 5:20pm or \a17:20pm Incorrect time, eg 8.4am 8.40pm Incorrect placement of sep\aarators, spaces, etc\a or incorrect use or omission \aof 0, eg 840 8:4:0 8.4 084 Responses involvin\ g measures Accept Do not accept Where un\bts are g\bven (eg kg, m, l) for example: 8.6kg kg 8.6kg Any unambiguous indic\aation of the correct measurement, eg 8.60kg 8.6000kg 8kg 600g Incorrect or ambiguous use\a of units, eg 8600kg Note If a pupil leaves t\ahe answer box empty \abut writes the answ\aer elsewhere on the page, then \athat answer must be \aconsistent with the \a units given in the a\answer box and the con\aditions listed above\a. If a pupil changes t\ahe unit given in the\a answer box, then th\aeir answer must be \aequivalent to the co\arrect answer using the\a unit they have chosen, unless \aotherwise indicated \ain the mark scheme.\a

2010 KS2 Mathematic\Ss tests mark scheme\Ss 6 Test A quest\bons 1– 6 Quest\bonRequ\brement MarkAdd\bt\bonal gu\bdance 1 Prices in order, as shown: £0.27 72p £2.07 £2.70 £7.20 1m Accept use of equiv\aalent units, eg 27p.\a Accept answers with\a missing or incorrect units. 2 23 AND 33 1m U1 Numbers may be give\an in either order. 3a 3b \bheetah Wildcat AND Leopard 1m 1mAccept unambiguous a\abbreviations or recognisable misspell\aings. Names may be given i\an either order. Accept unambiguous a\abbreviations or recognisable misspell\aings. Do not accept ‘L’ for Leopard. 4a 4b 40p Award TWO marks for the correct answer of 65p OR £0.65 If the answer is inc\aorrect, award ONE mark for evidence of appropriate working, eg 120 + 35 = 155 155 – 90 = wrong answer 1m Up to 2m Accept for ONE mark £65 OR £65p OR 0.65p as evidence of appropriate working. Working must be carri\aed through to reach an answer for the award of ONE mark. 5 Times in order as shown: 48 hours 24 days 1 month 10 wee\bs 1m Accept unambiguous a\abbreviations or recognisable misspell\aings. Accept use of equiv\aalent units, eg 2 da\ays. Accept answers with\a missing or incorrect units. 6 Award TWO marks for the diagr\aam completed as shown: 18 3240 24 6 3 8 4 10 If the answer is inc\aorrect, award ONE mark for two numbers correct OR 18 3210 n 24 6 3 8 n 10 where n is any number. Up to 2m

2010 KS2 Mathematic\Ss tests mark scheme\Ss 7 Test A quest\bons 7–12 Quest\bonRequ\brement MarkAdd\bt\bonal gu\bdance 7 144 1m 8a 8b B AND F \b AND D AND G 1m 1mLetters may be give\an in either order. Letters may be give\an in any order. 9 Jack 1mAccept unambiguous a\abbreviations or recognisable misspell\aings. 10 Award TWO marks for the table\a completed as shown: odd not odd a 3-digit number 247 990 not a 3-digit number 25 49 7002 If the answer is inc\aorrect, award ONE mark for four numbers placed correctly. Up to 2m Do not accept numbers wri\atten in more than one section. 11 3804 1m 12 Award TWO marks for the correct answer of 6 If the answer is inc\aorrect, award ONE mark for evidence of appropriate working, eg \a 2.50 × 2 = 5 14 – 5 = 9 9 ÷ 1.50 = wrong answer OR 14 – 2.50 – 2.50 =\a 9 1.50 × wrong number = 9 Up to 2m Accept for ONE mark an answer of £6\a as evidence of appropriate working. Working must be carri\aed through to reach an answer for the award of ONE mark.

2010 KS2 Mathematic\Ss tests mark scheme\Ss 8 Test A quest\bons 13–15 Quest\bonRequ\brement MarkAdd\bt\bonal gu\bdance 13a 13b 5 15 1m 1m U1 If the answer is inc\aorrect, award the mark if the answers to 13a and 13\ab total 20 14 11 2 + 31 2 × 2 OR 1 2 + 31 2 × 21 2 1m Numbers in brackets\a may be given in eit\aher order. Accept equivalent f\aractions or decimals.\a Do not accept use of the \asame card twice, eg 21 2 + 21 2 × 2 15 Award TWO marks for the correct answer of 30p. If the answer is inc\aorrect, award ONE mark for evidence of appropriate working, eg 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 Up to 2m U1 Working must be carri\aed through to reach an answer for the award of ONE mark.

2010 KS2 Mathematic\Ss tests mark scheme\Ss 9 Test A quest\bons 16–18 Quest\bonRequ\brement MarkAdd\bt\bonal gu\bdance 16 Award TWO marks for diagrams \aticked or crossed as shown: If the answer is inc\aorrect, award ONE mark for three diagrams ticked \aor crossed correctly. Up to 2m Accept alternative u\anambiguous indications\a, eg Y or N. For TWO marks, accept: For TWO marks accept lines \aof symmetry drawn on the correct two shapes and t\ahe other two shapes left blank. 17 18 + 16 + 6 OR 18 + 14 + 8 OR 18 + 12 + 10 OR 16 + 14 + 10 1m Numbers may be give\an in any order. 18a 18b −75 in the first box −200 in the second bo\ax 1m 1mDo not accept 75− Do not accept 200− Accept a number 125\a less than the answe\ar to 18a, provided the answer to\a 18a is negative.

2010 KS2 Mathematic\Ss tests mark scheme\Ss 10 Test A quest\bons 19–21 Quest\bonRequ\brement MarkAdd\bt\bonal gu\bdance 19 Line drawn from A to one of the two do\ats marked as shown: B A OR B A 1m Accept slight inacc\auracies in drawing (see page 3 for gui\adance). 20 Fraction circled as shown: 7 8 2 5 1 3 5 8 3 \b 1m Accept alternative u\anambiguous indications\a, eg fraction ticked, crossed or underlined.\a 21 Award TWO marks for the correct answer of 18 If the answer is inc\aorrect, award ONE mark for evidence of appropriate working, eg 50 ÷ 2 = 25 25 − 7 = wrong answer OR 7 × 2 = 14 50 − 14 = 36 36 ÷ 2 = wrong answer Up to 2m Working must be carri\aed through to reach an answer for the award of ONE mark.

2010 KS2 Mathematic\Ss tests mark scheme\Ss 11 Test A quest\bons 22–26 Quest\bonRequ\brement MarkAdd\bt\bonal gu\bdance 22a 22b Answer in the range \a 13 100 to 1 5 inclusive Answer in the range \a500 to 800 inclusiv\ae 1m 1m Range includes 1 6 and 1 7 Accept decimals or \apercentages. (0.13 to 0.2 inclus\aive) (13% to 20 % inclus\aive) 23 101 1m 24 Diagram completed as\a shown: B A 1m Accept slight inacc\auracies in drawing (see page 3 for gui\adance). 25 Award TWO marks for the correct answer of 23 If the answer is inc\aorrect, award ONE mark for evidence of appropriate working, eg 2 × 2 = 4 4 + 5 = 9 9 × 2 = 18 18 + 5 = wrong answer Up to 2m U1 Working must be carri\aed through to reach an answer for the award of ONE mark. 26 An explanation which \arecognises that 40% o\af the number must be mult\aiplied by 2 1 2, or equivalent, eg: „ ‘You multiply by 2.5’\a „ ‘Halve it and multip\aly by 5’ „ ‘Divide by 4 to get\a 10% and then multip\aly by 10’ „ ‘Divide by 40 then \amultiply by 100’ „ ‘If you had 100, qu\aarter of 100 is 25,\a then times by 10 to get 250’ „ ‘Double it and add h\aalf of it’. 1m U1 Do not accept vague or inc\aomplete explanations,\a eg: „ ‘Start with the ori\aginal number and find 4\a0% of it’ „ ‘Find 10% and multip\aly by 10’ „ ‘Divide by 4 to find \a10% and then you can \afind 100%’ „ ‘Find 1% and multipl\ay by 100’ „ ‘If you had 20 it w\aould be 50’ „ ‘Add 60%’

2010 KS2 Mathematic\Ss tests mark scheme\Ss 12 Test B quest\bons 1– 5 Quest\bonRequ\brement MarkAdd\bt\bonal gu\bdance 1 Award TWO marks for the four \alines drawn as shown: 100 20 0 30 0 40 0 50 0 110 + 230 357 – 149 62 × 8 777 – 679 801 – 444 If the answer is inc\aorrect, award ONE mark for three correct lines drawn AND not more than one incorrect line drawn. Up to 2m Do not award any marks if two or\a more incorrect lines are drawn. Lines need not touch \athe boxes, provided the intention is clear. 2a 2b 150 2 1m 1m Accept A AND D in either order. 3 115 OR 151 OR 511 OR 133 OR 313 OR 331 1m U1 4 Diagram completed as\a shown: mirror line 1m Accept slight inacc\auracies in drawing (see page 3 for gui\adance). Shape need not be sh\aaded. 5a 5b 5c 4 hours Saturday 35 minutes 1m 1m 1m The answer is a time\a interval (see page 5 for gui\adance). Accept unambiguous a\abbreviations or recognisable misspell\aings. Accept ‘10am to 5:3\a0pm’. Accept 7 1 2 hours. The answer is a time\a interval (see page 5 for gui\adance).

2010 KS2 Mathematic\Ss tests mark scheme\Ss 13 Test B quest\bons 6–11 Quest\bonRequ\brement MarkAdd\bt\bonal gu\bdance 6a 6b 5 Award TWO marks for the correct answer of £2.85 If the answer is inc\aorrect, award ONE mark for evidence of appropriate method, eg 0.55 × 3 = 1.65 1.20 + 1.65 1m Up to 2m Accept for ONE mark £285 OR £285p as evidence \a of appropriate method. Answer need not be ob\atained for the award of ONE mark. 7 An explanation which \arecognises that 5 is \aa quarter of 20, the \atotal number of ballo\aons, eg: „ ‘ 1 4 are red, 1 4 are blue and half are yellow’ „ ‘A quarter of 20 is\a 5’ „ ‘5 out of 20’ „ ‘There are 20 balloons altoget\aher and 5 are red so she is correct’. 1m U1 No mark is awarded for circling ‘Yes’ alone. Do not accept vague or inc\aomplete explanations,\a eg: „ ‘5 are red, 5 are blue and 10 are yellow so that is a quarter’ „ ‘There are 20 altogether’ „ ’Add all the balloons\a up and divide by 4\a’ If ‘No’ is circled but a correct, unambiguous explanation is given,\a then award the mark. 8 Three multiples of 3, \aeg: 3 6 2 4 5 7 OR 6 3 7 2 5 4 1m U1 Multiples may be gi\aven in any order. Digits may be in ei\ather order, eg 24 OR 42 Do not accept digits used\a more than once. Do not accept digits othe\ar than those shown. 9a 9b 3 2004 AND 2007 AND 2008 1m 1m U1 Do not accept a list of ye\aars. Years may be given in\a any order. 10 325 1m 11 Award TWO marks for diagrams \aticked or crossed as shown: If the answer is inc\aorrect, award ONE mark for three diagrams ticked \aor crossed correctly. Up to 2m Accept alternative u\anambiguous indications\a, eg Y or N. For TWO marks, accept:

2010 KS2 Mathematic\Ss tests mark scheme\Ss 14 Test B quest\bons 12–16 Quest\bonRequ\brement MarkAdd\bt\bonal gu\bdance 12 6 2 × 8 4 OR 6 4 × 8 2 1m Numbers may be give\an in either order. 13 Award TWO marks for the correct answer of 99 If the answer is inc\aorrect, award ONE mark for evidence of appropriate method, eg 36 – 25 = 11 11 × 9 OR (36 − 25) × 9 Up to 2m Answer need not be ob\atained for the award of ONE mark. 14 Diagram completed as\a shown: 0 0 1 2 3 4 5 6 7 y 1 2 3 4 5 6 7 8 9 x 1m Accept slight inacc\auracies in drawing (see page 3 for gui\adance). 15a 15b 16 46p 1m 1m 16a 16b \b AND D A AND D 1m 1mLetters may be give\an in either order. Letters may be give\an in either order.

2010 KS2 Mathematic\Ss tests mark scheme\Ss 15 Test B quest\bons 17–2\V1 Quest\bonRequ\brement MarkAdd\bt\bonal gu\bdance 17a 17b Answer in the range \aof 8:40pm to 8:50pm\a inclusive 3 1m 1mThe answer is a spec\aific time (see page 5 for gui\adance). Do not accept −3 18 Award TWO marks for the correct answer of 45 If the answer is inc\aorrect, award ONE mark for evidence of appropriate method, eg: „ 70 ÷ 2 = 35 80 – 35 OR „ 80 – 70 = 10 70 ÷ 2 = 35 35 + 10 OR „ 80 + 80 = 160 160 – 70 = 90 90 ÷ 2 OR „ 80 + 80 + 70 = 230\a 230 ÷ 2 = 115 115 – 70 Up to 2m U1 Answer need not be ob\atained for the award of ONE mark. Sarah and Amy must \’ weigh the same ...\’ Liam must weigh 10\’kg more than Sarah ... Add all three rows and hal\be the total ...\’ Add the bottom two \’rows and subtract the to\’p ... 19 Award TWO marks for the diagr\aam completed as shown: If the answer is inc\aorrect, award ONE mark for two shapes correct and no more than one incorrect. Up to 2m Accept slight inacc\auracies in drawing p\arovided the intention is clear. \bircle and square need not be shaded\a. 20 126 1m 21 Measurements circled as shown: 4 centimetres 4 inches 10 kilometres 10 miles 2 litres 2 pints 5 grams 5 pounds 1m Accept alternative u\anambiguous indications\a, eg measurements ticked, crossed or underlined.\a

2010 KS2 Mathematic\Ss tests mark scheme\Ss 16 Test B quest\bons 22–2\V4 Quest\bonRequ\brement MarkAdd\bt\bonal gu\bdance 22 Award TWO marks for three rows ticked correctly as shown: less than 1000 equal to 1000 more than 1000 5 × 15 × 25 1\b × (80.3 − 17.8) 3888 ÷ (4.32 − 0.57) (32 − 5.7) × (32 + \75.7) If the answer is inc\aorrect, award ONE mark for two rows ticked correctly. Up to 2m Accept alternative u\anambiguous indications\a, eg û or Y. 23 Award TWO marks for all three expressions correct, eg k – 2 2 k + 3 6 + 1 2 k If the answer is inc\aorrect, award ONE mark for two expressions correct. Up to 2m Accept equivalent or\a unconventional notation\a, eg k + k + 3 OR 3 + 2 × k k2 + 6 OR 6 + k ÷ 2 24 An explanation which \acorrectly compares the contents of the two b\aags, 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’. 1m U1 No mark is awarded for circling ‘A’ alone. Do not accept vague or inc\aomplete explanations,\a eg: „ ‘A is more likely even thoug\ah there are more blues in B’ „ ‘A has an even chance\a’. If ‘B’ is circled but a correct, unambiguous explanation is given,\a then award the mark.

2010 KS2 Mathematic\Ss tests mark scheme\Ss 17 Mark scheme for the\S mental mathematics test Apply\bng the mark sc\Vheme Please note that pup\ails will not be pena\alised if they record any information give\an in the question or show the\air working. Markers \awill ignore any annotation, even \aif in the answer space, and mark only \athe answer. Markers will acce\apt an unambiguous answ\aer written in the stimulus box, o\ar elsewhere on the page. Full mark scheme in\aformation is given on \apage 19. In addition, \aa ‘quick reference’ mark scheme is provided on page 18. T\ahis is presented in a similar\a format to the pupil\a’s answer sheet. General gu\bdance The general guidance\a for marking the wri\atten tests also appl\aies to marking the m\aental mathematics test. I\an addition, the follo\awing principles appl\ay. 1. Unless stated otherw\aise in the mark sch\aeme, accept answers \awritten in words, or a combination of words and figures. 2. Where units are specified, they ar\ae given on the answer\a sheet. Pupils are not penalised for writin\ag in the units again.\a 3. Where answers are required to be ringed, do \anot accept if more than one answer is ringed, unless it i\as clear which is th\ae pupil’s intended answer. Accept also any oth\aer way of indicating the\a correct answer, eg underlining.

18 Mental mathemat\bcs \V2010 qu\bck reference mark scheme Practice question 3 0.1 Do not accept fractions or percentages Time: 5 seconds 1 41 2 300 5 7500 4 9 Time: 15 seconds 16 92 19 Any multiple of 20 \agreater than 100, eg 120 OR 200 18 9 hours 7 775 Time: 10 seconds 6 20 9 50 g 10 6.4 8 8 1 2 Accept equivalent fractions or decimals\a 15 10 cm 14 34 ° 12 £ 5.40 Do not accept £5.4 13 5 7 OR 20 28 OR any equivalent fraction 20 252 11 20 17 0.3\b 3.\b 3\b 360 3\b00

2010 KS2 Mathematic\Ss tests mark scheme\Ss 19 Mental mathemat\bcs \Vquest\bons 1–20 Quest\bonRequ\brement MarkAdd\bt\bonal gu\bdance 1 41 1m 2 300 1m 3 0.1 1mDo not accept fractions or \apercentages. 4 9 1m 5 7500 1m 6 20 1m 7 775 1m 8 8 1 2 1m Accept equivalent f\aractions or decimals.\a 9 50 g 1m 10 6.4 1m 11 20 1m 12 £5.40 1mDo not accept £5.4 13 5 7 OR 20 28 OR any equivalent fracti\aon 1m 14 34° 1m 15 10 cm 1m 16 92 1m 17 0.3\b 3.\b 3\b 360 3\b00 1m Accept alternative u\anambiguous indications\a, eg underlining. Do not accept if more than one answer is \a indicated unless the\a intention is clear. 18 9 hours 1m 19 Any multiple of 20 \agreater than 100, eg 120 OR 200 1m 20 252 1m





For more cop\bes Q\bDA 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 Q\bDA/10/4477 (Mark schemes pack) 298173 Qual\bf\bcat\bons and Curr\bculum Development Agency 83 Piccadilly, London W1J 8QA Telephone 0300 303 3013 Textphone 0300 303 3012 Fax 0300 303 3014 Email assessments@qcda.gov\a.uk www.qcda.gov.uk/tests