Mrs Cairns’ group.
Homework set 25.9.15 and to be handed in by 30.9.15
Vocabulary – What do these words mean? Please write their definitions into your book.
Negative numbers, Positive numbers, rise, ascending, fall, descending
Mental maths activity
Can you double the following numbers using partitioning?
1. 42
2. 64
3. 86
4. 78
5. 125
6. 264
7. 474
8. 925
Can you halve the following numbers using partitioning?
9. 42
13. 564
10. 86
14. 768
11. 128
15. 264
12. 474
16. 828
Remember to split the
number up into the HTU and
double/ halve each one. Don’t
forget to check them, then
add them!
Challenge - Can you double and halve the following 4 digit numbers?
17. 1790
18. 2346
19. 3405
20. 7352
Learning Objective – to arrange positive and negative numbers in order from
smallest to largest.
Can you arrange the following numbers in order from the smallest on the left to the
largest on the right?
-35
-14
8
-61
54
-23
76
-15
45
-23
12
-2
-120
24
-36
23
-16
-173
58
-37
27
-17
29
-28
-38
-29
-28
-39
-83
-75
-689
356
789
-546
775
-678
399
-279
-389
-238
-283 -289
183
-238
194
-383
-389
-284
For further practice of this skill, you can use the website below
bbc.co.uk/bitesize/ks2/maths/number/negative_numbers/play/
Challenge Objective – to solve word problems involving temperature changes using
positive and negative numbers
The temperature in Alaska was -17° and the temperature in Greece was 23°. Find the
difference between these temperatures?
The temperature in Canada was -12° and in Malaysia it was 29°. What was the difference
in temperature between these 2 countries?
The temperature in Moscow was -14°. The temperature rose by 15°. What was the new
temperature?
The temperature in Iceland was -23°. The temperature rose by 25°. What was the new
temperature?
The temperature in Madrid was 25°. The temperature fell by 28°. What was the new
temperature?
The temperature in Cardiff was 14°. The temperature fell by 15°. What was the new
temperature?