Let’s go through each addition problem one by one and solve them carefully.
1. 25 + 15 =
25 + 10 = 35, then +5 more = 40 →
40
2. 31 + 8 =
31 + 8 = 39 →
39
3. 10 + 20 =
10 + 20 = 30 →
30
4. 17 + 10 =
17 + 10 = 27 →
27
5. 9 + 12 =
9 + 10 = 19, +2 more = 21 →
21
6. 22 + 11 =
22 + 10 = 32, +1 more = 33 →
33
7. 47 + 14 =
47 + 10 = 57, +4 more = 61 →
61
8. 70 + 13 =
70 + 10 = 80, +3 more = 83 →
83
9. 22 + 40 =
22 + 40 = 62 →
62
10. 13 + 10 =
13 + 10 = 23 →
23
11. 21 + 9 =
21 + 9 = 30 →
30
12. 22 + 31 =
22 + 30 = 52, +1 more = 53 →
53
13. 40 + 20 =
40 + 20 = 60 →
60
14. 25 + 10 =
25 + 10 = 35 →
35
15. 15 + 15 =
15 + 15 = 30 →
30
16. 26 + 9 =
26 + 10 = 36, minus 1 = 35 →
35
17. 16 + 35 =
16 + 30 = 46, +5 more = 51 →
51
18. 30 + 28 =
30 + 20 = 50, +8 more = 58 →
58
19. 25 + 45 =
25 + 40 = 65, +5 more = 70 →
70
20. 52 + 32 =
52 + 30 = 82, +2 more = 84 →
84
All answers checked and verified.
Final Answer:
1. 40
2. 39
3. 30
4. 27
5. 21
6. 33
7. 61
8. 83
9. 62
10. 23
11. 30
12. 53
13. 60
14. 35
15. 30
16. 35
17. 51
18. 58
19. 70
20. 84
Parent Tip: Review the logic above to help your child master the concept of printable addition worksheet and answer sheet.
