Follow Up for Week 5
I am learning to subtract by splitting numbers into parts instead of counting down
Day 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.
- 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.
- 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
- 27 - 6 =21
Explanation:7-6=1 so 27 - 6=21
- 21 - 8 =13
Explanation:8-1=7, 20-7=13
Day 2
- 32 - 5 =27
Explanation:5=2 and 3, 32-2=30-3=7
- 34 - 4 =30
Explanation:30-4=30
- 37 - 6 =31
Explanation:7-6=1 so 37-6=31
- 33 - 8 =25
Explanation:8=3 and 5, 33-3=30-5=25
- 39 - 7 =32
Explanation:9-7=2 so 39-7=32
Day 3
- 41 - 5 =36
Explanation:5=4 and 1 so 41-1=40-4=36
- 43 - 7 =36
Explanation:7=4 and 3 so 43-3-4=36
- 47 - 5 =42
Explanation:7-2=5 so 47-5=42
- 49 - 9 =40
Explanation:49-9=40
- 44 - 8 =36