Let’s solve each addition problem step by step. We’ll add the two numbers in each column, starting from the ones place and then moving to the tens place.
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First row:
1. 32 + 22
→ Ones: 2 + 2 = 4
→ Tens: 3 + 2 = 5
→ Answer:
54
2. 55 + 42
→ Ones: 5 + 2 = 7
→ Tens: 5 + 4 = 9
→ Answer:
97
3. 24 + 16
→ Ones: 4 + 6 = 10 → write down 0, carry over 1
→ Tens: 2 + 1 + 1 (carry) = 4
→ Answer:
40
4. 35 + 40
→ Ones: 5 + 0 = 5
→ Tens: 3 + 4 = 7
→ Answer:
75
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Second row:
5. 12 + 14
→ Ones: 2 + 4 = 6
→ Tens: 1 + 1 = 2
→ Answer:
26
6. 73 + 25
→ Ones: 3 + 5 = 8
→ Tens: 7 + 2 = 9
→ Answer:
98
7. 36 + 42
→ Ones: 6 + 2 = 8
→ Tens: 3 + 4 = 7
→ Answer:
78
8. 38 + 61
→ Ones: 8 + 1 = 9
→ Tens: 3 + 6 = 9
→ Answer:
99
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Third row:
9. 24 + 24
→ Ones: 4 + 4 = 8
→ Tens: 2 + 2 = 4
→ Answer:
48
10. 45 + 12
→ Ones: 5 + 2 = 7
→ Tens: 4 + 1 = 5
→ Answer:
57
11. 32 + 36
→ Ones: 2 + 6 = 8
→ Tens: 3 + 3 = 6
→ Answer:
68
12. 50 + 35
→ Ones: 0 + 5 = 5
→ Tens: 5 + 3 = 8
→ Answer:
85
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Final Answer:
54, 97, 40, 75, 26, 98, 78, 99, 48, 57, 68, 85
Parent Tip: Review the logic above to help your child master the concept of 2 digit addition worksheet for first grade.
