Half-Term Test 1 Workbook Mark Scheme

Half-term Test 1 Workbook Mark Scheme1

Half-term Test 1 Workbook Mark Scheme

Chapters 1, 2, 3

Question / Answer / Mark / Comment / Objective / References to Workbook
1
(a)
(b)
(c)
(d) / 30
5
Monday
5th / 1
1
1
1 / Use a calendar to calculate time intervals / Exercise 1A
2 / 270, 280
180, 160 / 1
1 / Both correct for 1 mark
Both correct for 1 mark / Recognise and continue number sequences formed by counting on or back in steps of a constant size / Exercise 2E
3
(a)
(b)
(c) / various
various
26, 32 or 36 / 1
1
1 / Any four-digit number ending in 2 or 6, no repeated digits
Any four-digit number ending in 3 or 9, no repeated digits / Identify and use patterns, relationships and properties of numbers / Exercise 2B q2
4
(a)
(b) / 746
six hundred and nine / 1
1 / Read and write whole numbers / Exercise 3B q1, 2
5 / –9 / 1 / Understand negative numbers as positions on a number line / Exercise 3F q1
6 / 1:25 pm
20:40 / 1
1 / Must include pm / Read times using 24 hour clock notation / Exercise 1B q1, 2
7
(a)
(b)
(c) / 4000
500
45, 48, 52 / 1
1
2 / All three correct for 2 marks, 1 incorrect award 1 mark / Round four-digit whole numbers to the nearest 10, 100 or 1000 / Exercise 2C
8
(a)
(b) / –2C
3C / 1
1 / Understand negative numbers as positions on a number line / Exercise 2D q2
9 / 252 / 2 / Award 1 mark for showing some correct working with an incorrect answer / Refine and use efficient written methods to subtract two- and three-digit whole numbers / Exercise 3F q2
10 / 450, 4500, 7800, 2000, 20000, 3960 / 4 / All six correct award 4 marks, any five correct award 3 marks, any three correct award 2 marks, any two correct award 1 mark / Multiply integers by 10, 100 and explain the effect / Exercise 3D q2, 3
11 / 1123 / 2 / Award 1 mark for showing some correct working with an incorrect answer / Refine and use efficient written methods to add two- and three-digit whole numbers / Exercise 3G q2
12 / 33p, 18p / 2 / Award one mark for each correct answer / Solve one- and two-step problems involving money / Exercise 3C q 2, 3
13 / 131 / 1 / Refine and use efficient written methods to add and subtract two- and three-digit whole numbers / Exercise 3A q3
14 / 68 + 44 & 73 + 39
92 – 36 & 78 – 22
58 – 17 & 12 + 29
12 + 77 & 98 – 9 / 3 / All four correct for 3 marks
Any three correct for 2 marks
Any two correct for 1 mark / Refine and use efficient written methods to add and subtract two- and three-digit whole numbers / Exercise 3C q3, 3D q3
15 / 5, 5, 25
9, 9, 81
10, 10, 10 / 1
1
1 / Whole statement must be correct for each mark / Use knowledge of multiplication facts to quickly derive squares of numbers to 12 x 12 / Exercise 3C q1, 3D q1
16 / 4239
4693
2046
231
944 / 3 / All five correct for 3 marks
Any four correct for 2 marks
Any three correct for 1 mark / Use a calculator to carry out one-step calculations involving all four operations / Exercise 3E q1
17
(a)
(b)
(c)
(d)
(e) / 85p
15p
61p
3 coins: 50p, 10p and 1p
£3.65 / 1
1
1
1
2 / 1 mark for finding correct total of £1.35, or 1 mark for full correct method with errors
2 marks allowed for correct answer only / Solve one- and two-step problems involving money / Exercise 3A q4
18
(a)
(b) / add 17
58, 45 / 1
1 / Both correct for 1 mark / Recognise and continue number sequences formed by counting on or back in steps of a constant size / Exercise 2E
19
(a)
(b) / 12 + 6 + 4 – 3 = 19
6 + 4 + 3 – 12 = 1 / 1
1 / Order of numbers can be different / Use a calculator to carry out one-step calculations involving all four operations / Exercise 3E q2

Mark Boundaries

Level 2c1–9

Level 2b10–15

Level 2a16–21

Level 3c22–27

Level 3b28–39

Level 3a40–50

Investigation Answers/Suggestions

This investigation covers the following skills:

Independent enquirers –analyse and evaluate information, judging its relevance and value
Reflective learners –evaluate experiences and learning to inform future progress

Write the first ten square numbers 1, 4, 9, 16, 25, 36, 49, 64, 81, 100.

Find that first, third, fifth ... square numbers are odd and second, fourth, sixth ... are even. Make statements such as ‘the numbers go odd then even’.

Recognise from the pattern that the next (eleventh) square number will be odd.

Complete the differences of square numbers to create the sequence 3, 5, 7, 9, 11, 13, 15, 17, 19. Identify that the rule is start at 3 and add 2.

Use a calculator to work out 121, 144, 169 ... 400.