Let’s go through each addition problem one by one. I’ll add the numbers carefully and write down the correct sum for each.
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First Row:
1. 80 + 2 =
82
2. 33 + 19 → 33 + 20 = 53, minus 1 =
52
3. 18 + 8 =
26
4. 21 + 9 =
30
5. 44 + 10 =
54
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Second Row:
6. 52 + 55 → 50+50=100, 2+5=7 →
107
7. 42 + 5 =
47
8. 37 + 32 → 30+30=60, 7+2=9 →
69
9. 73 + 15 → 70+10=80, 3+5=8 →
88
10. 84 + 32 → 80+30=110, 4+2=6 →
116
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Third Row:
11. 64 + 43 → 60+40=100, 4+3=7 →
107
12. 90 + 47 → 90+40=130, +7=
137
13. 14 + 8 =
22
14. 89 + 51 → 89+50=139, +1=
140
15. 26 + 71 → 20+70=90, 6+1=7 →
97
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Fourth Row:
16. 93 + 7 =
100
17. 93 + 22 → 90+20=110, 3+2=5 →
115
18. 44 + 18 → 44+20=64, minus 2 =
62
19. 88 + 55 → 80+50=130, 8+5=13 → 130+13=
143
20. 83 + 62 → 80+60=140, 3+2=5 →
145
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Fifth Row:
21. 82 + 63 → 80+60=140, 2+3=5 →
145
22. 59 + 41 → 59+40=99, +1=
100
23. 36 + 72 → 30+70=100, 6+2=8 →
108
24. 85 + 14 → 85+10=95, +4=
99
25. 79 + 32 → 79+30=109, +2=
111
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Sixth Row (only three problems):
26. 21 + 7 =
28
27. 84 + 62 → 80+60=140, 4+2=6 →
146
28. 93 + 16 → 93+10=103, +6=
109
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All calculations checked twice — no errors found.
Final Answer:
82, 52, 26, 30, 54, 107, 47, 69, 88, 116, 107, 137, 22, 140, 97, 100, 115, 62, 143, 145, 145, 100, 108, 99, 111, 28, 146, 109
Parent Tip: Review the logic above to help your child master the concept of printable math worksheet for second graders.
