Maths Follow Up for Week 5

Follow Up for Week 5

I am learning to subtract by splitting numbers into parts instead of counting down

Day 1

1. 15 - 6 = 9

Explanation: 6=1 and 5, use the five on the fifteen to make it ten and then use the one on the ten and make it 9.

2. 22 - 7 =15

Explanation:7=5 and 2,use the 2 on the 22 to make it 20 then use the 5 on the 20 to make it 15.

3. 25 - 9 =16

Explanation:9=4 and 5,use the 5 on the 25 to make it 20 and then use the 4 on the 20 to make it 16

4. 27 - 6 =21

Explanation:7-6=1 so 27 - 6=21

5. 21 - 8 =13

Explanation:8-1=7, 20-7=13

Day 2

1. 32 - 5 =27

Explanation:5=2 and 3, 32-2=30-3=7

2. 34 - 4 =30

Explanation:30-4=30

3. 37 - 6 =31

Explanation:7-6=1 so 37-6=31

4. 33 - 8 =25

Explanation:8=3 and 5, 33-3=30-5=25

5. 39 - 7 =32

Explanation:9-7=2 so 39-7=32

Day 3

1. 41 - 5 =36

Explanation:5=4 and 1 so 41-1=40-4=36

2. 43 - 7 =36

Explanation:7=4 and 3 so 43-3-4=36

3. 47 - 5 =42

Explanation:7-2=5 so 47-5=42

4. 49 - 9 =40

Explanation:49-9=40

5. 44 - 8 =36

Explanation:8=4 and 4 so 44-4=40-4=36