KS1 Maths Quiz - Year 2 Calculation - Addition in a Different Order (Questions)

This quiz addresses the requirements of the National Curriculum KS1 Maths and Numeracy for children aged 6 and 7 in year 2. Specifically this quiz is aimed at the section dealing with adding in a different order.

In Year 2, children are encouraged to check their addition calculations. They might do this by adding the numbers up again, but in a different order. For example, if they add up 6 + 9 + 4, they may check it by recognising that 6 + 4 makes 10, and 9 more is 19, or they may do it differently by adding 4 + 9 to make 13 then adding 6 to give 19. This is called the commutative property and means that addition calculations can be done in any order to achieve the same answer.

1. What is 3 + 22?
[ ] 26
[ ] 25
[ ] 27
[ ] 23
2. What is 2 + 30 + 8?
[ ] 37
[ ] 48
[ ] 35
[ ] 40
3. What is 16 + 70 + 4?
[ ] 90
[ ] 80
[ ] 78
[ ] 87
4. What is 2 + 60 + 4?
[ ] 75
[ ] 67
[ ] 56
[ ] 66
5. What is 1 + 1 + 85 + 1 + 1?
[ ] 89
[ ] 88
[ ] 86
[ ] 98
6. What is 5 + 5 + 10 + 5 + 5
[ ] 25
[ ] 35
[ ] 30
[ ] 40
7. What is 12 + 13 + 11 + 10?
[ ] 54
[ ] 48
[ ] 46
[ ] 44
8. What is 2 + 14 + 18 + 6?
[ ] 45
[ ] 35
[ ] 50
[ ] 40
9. What is 1 + 35 + 34?
[ ] 70
[ ] 60
[ ] 75
[ ] 65
10. What is 10 + 43 + 10 + 2
[ ] 67
[ ] 65
[ ] 75
[ ] 66
KS1 Maths Quiz - Year 2 Calculation - Addition in a Different Order (Answers)
1. What is 3 + 22?
[ ] 26
[x] 25
[ ] 27
[ ] 23
Starting at 3 and counting on 22 would take longer than swapping the order of the numbers around!
2. What is 2 + 30 + 8?
[ ] 37
[ ] 48
[ ] 35
[x] 40
Adding the 2 and 8 first gives 10, which is easily added to 30
3. What is 16 + 70 + 4?
[x] 90
[ ] 80
[ ] 78
[ ] 87
Spotting the bond to 20 makes this calculation become much easier
4. What is 2 + 60 + 4?
[ ] 75
[ ] 67
[ ] 56
[x] 66
Adding the smaller numbers first and then adding them to 60 is the best option
5. What is 1 + 1 + 85 + 1 + 1?
[x] 89
[ ] 88
[ ] 86
[ ] 98
Starting at 85 and counting on 4 is perfectly acceptable
6. What is 5 + 5 + 10 + 5 + 5
[ ] 25
[ ] 35
[x] 30
[ ] 40
Starting at 10 and counting up in 5s, or adding up all the 5s and then 10 more are both good strategies
7. What is 12 + 13 + 11 + 10?
[ ] 54
[ ] 48
[x] 46
[ ] 44
Adding together all the tens and then the units and combining the two totals is a useful way of solving this
8. What is 2 + 14 + 18 + 6?
[ ] 45
[ ] 35
[ ] 50
[x] 40
Recognising that there are two pairs of bonds to 20 makes it much easier to solve this
9. What is 1 + 35 + 34?
[x] 70
[ ] 60
[ ] 75
[ ] 65
Adding the 1 to the 34 gives 35. 35 + 35 = 70
10. What is 10 + 43 + 10 + 2
[ ] 67
[x] 65
[ ] 75
[ ] 66
Counting up in tens from 43 and finally adding the 2 makes this calculation easy