Let’s solve each addition problem step by step. We’ll add the two numbers in each pair, starting from the right (ones place) and moving to the left (tens place). If the sum of the ones is 10 or more, we carry over to the tens place.
---
First row:
1.
95 + 13
Ones: 5 + 3 = 8
Tens: 9 + 1 = 10 → write as 108
✔ 108
2.
28 + 99
Ones: 8 + 9 = 17 → write 7, carry 1
Tens: 2 + 9 + 1 (carry) = 12 → write 127
✔ 127
3.
11 + 59
Ones: 1 + 9 = 10 → write 0, carry 1
Tens: 1 + 5 + 1 = 7 → write 70
✔ 70
4.
45 + 32
Ones: 5 + 2 = 7
Tens: 4 + 3 = 7 → write 77
✔ 77
5.
25 + 30
Ones: 5 + 0 = 5
Tens: 2 + 3 = 5 → write 55
✔ 55
---
Second row:
6.
33 + 53
Ones: 3 + 3 = 6
Tens: 3 + 5 = 8 → write 86
✔ 86
7.
53 + 62
Ones: 3 + 2 = 5
Tens: 5 + 6 = 11 → write 115
✔ 115
8.
24 + 46
Ones: 4 + 6 = 10 → write 0, carry 1
Tens: 2 + 4 + 1 = 7 → write 70
✔ 70
9.
51 + 79
Ones: 1 + 9 = 10 → write 0, carry 1
Tens: 5 + 7 + 1 = 13 → write 130
✔ 130
10.
49 + 77
Ones: 9 + 7 = 16 → write 6, carry 1
Tens: 4 + 7 + 1 = 12 → write 126
✔ 126
---
Third row:
11.
56 + 96
Ones: 6 + 6 = 12 → write 2, carry 1
Tens: 5 + 9 + 1 = 15 → write 152
✔ 152
12.
22 + 29
Ones: 2 + 9 = 11 → write 1, carry 1
Tens: 2 + 2 + 1 = 5 → write 51
✔ 51
13.
59 + 77
Ones: 9 + 7 = 16 → write 6, carry 1
Tens: 5 + 7 + 1 = 13 → write 136
✔ 136
14.
43 + 97
Ones: 3 + 7 = 10 → write 0, carry 1
Tens: 4 + 9 + 1 = 14 → write 140
✔ 140
15.
63 + 30
Ones: 3 + 0 = 3
Tens: 6 + 3 = 9 → write 93
✔ 93
---
Fourth row:
16.
72 + 70
Ones: 2 + 0 = 2
Tens: 7 + 7 = 14 → write 142
✔ 142
17.
11 + 74
Ones: 1 + 4 = 5
Tens: 1 + 7 = 8 → write 85
✔ 85
18.
69 + 12
Ones: 9 + 2 = 11 → write 1, carry 1
Tens: 6 + 1 + 1 = 8 → write 81
✔ 81
19.
95 + 49
Ones: 5 + 9 = 14 → write 4, carry 1
Tens: 9 + 4 + 1 = 14 → write 144
✔ 144
20.
80 + 54
Ones: 0 + 4 = 4
Tens: 8 + 5 = 13 → write 134
✔ 134
---
Fifth row:
21.
18 + 38
Ones: 8 + 8 = 16 → write 6, carry 1
Tens: 1 + 3 + 1 = 5 → write 56
✔ 56
22.
80 + 40
Ones: 0 + 0 = 0
Tens: 8 + 4 = 12 → write 120
✔ 120
23.
41 + 47
Ones: 1 + 7 = 8
Tens: 4 + 4 = 8 → write 88
✔ 88
24.
51 + 21
Ones: 1 + 1 = 2
Tens: 5 + 2 = 7 → write 72
✔ 72
25.
61 + 46
Ones: 1 + 6 = 7
Tens: 6 + 4 = 10 → write 107
✔ 107
---
Final Answer:
108, 127, 70, 77, 55,
86, 115, 70, 130, 126,
152, 51, 136, 140, 93,
142, 85, 81, 144, 134,
56, 120, 88, 72, 107
Parent Tip: Review the logic above to help your child master the concept of 2 digit addition worksheet with regrouping.
