Let’s solve each problem one by one. We’ll do the math carefully and check our work.
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First row:
1.
67 - 03
Think: 67 minus 3 is 64. (Since 03 is just 3)
→
64
2.
47 + 32
Add tens: 40 + 30 = 70
Add ones: 7 + 2 = 9
Total: 70 + 9 =
79
3.
89 - 73
Subtract tens: 80 - 70 = 10
Subtract ones: 9 - 3 = 6
Total: 10 + 6 =
16
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Second row:
4.
66 + 12
Tens: 60 + 10 = 70
Ones: 6 + 2 = 8
Total: 70 + 8 =
78
5.
83 - 40
Just subtract 40 from 83: 83 - 40 =
43
6.
55 + 12
Tens: 50 + 10 = 60
Ones: 5 + 2 = 7
Total: 60 + 7 =
67
---
Third row:
7.
87 - 33
Tens: 80 - 30 = 50
Ones: 7 - 3 = 4
Total: 50 + 4 =
54
8.
57 + 42
Tens: 50 + 40 = 90
Ones: 7 + 2 = 9
Total: 90 + 9 =
99
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Now let’s double-check all answers:
- 67 - 3 = 64
✔
- 47 + 32 = 79
✔
- 89 - 73 = 16
✔
- 66 + 12 = 78
✔
- 83 - 40 = 43
✔
- 55 + 12 = 67
✔
- 87 - 33 = 54
✔
- 57 + 42 = 99
✔
All correct!
Final Answer:
64, 79, 16, 78, 43, 67, 54, 99
Parent Tip: Review the logic above to help your child master the concept of single digit addition and subtraction worksheet without regrouping.
