I'll solve this missing addends worksheet step by step. Each problem asks for the number that, when added to the given number, equals 100.
To find the missing addend, I need to subtract the known number from 100.
Let me work through each problem:
Left Column:
1. 41 + ___ = 100 → 100 - 41 = 59
2. ___ + 25 = 100 → 100 - 25 = 75
3. 44 + ___ = 100 → 100 - 44 = 56
4. ___ + 57 = 100 → 100 - 57 = 43
5. 13 + ___ = 100 → 100 - 13 = 87
6. ___ + 62 = 100 → 100 - 62 = 38
7. 47 + ___ = 100 → 100 - 47 = 53
8. ___ + 78 = 100 → 100 - 78 = 22
9. ___ + 90 = 100 → 100 - 90 = 10
10. 15 + ___ = 100 → 100 - 15 = 85
11. ___ + 36 = 100 → 100 - 36 = 64
Right Column:
12. 12 + ___ = 100 → 100 - 12 = 88
13. ___ + 39 = 100 → 100 - 39 = 61
14. 80 + ___ = 100 → 100 - 80 = 20
15. ___ + 35 = 100 → 100 - 35 = 65
16. 84 + ___ = 100 → 100 - 84 = 16
17. ___ + 81 = 100 → 100 - 81 = 19
18. ___ + 11 = 100 → 100 - 11 = 89
19. 45 + ___ = 100 → 100 - 45 = 55
20. ___ + 73 = 100 → 100 - 73 = 27
Let me verify a few of these calculations to make sure they're correct:
- 41 + 59 = 100 ✓
- 75 + 25 = 100 ✓
- 44 + 56 = 100 ✓
- 43 + 57 = 100 ✓
- 13 + 87 = 100 ✓
- 38 + 62 = 100 ✓
- 12 + 88 = 100 ✓
- 61 + 39 = 100 ✓
All calculations check out!
Final Answer:
Left Column (top to bottom):
59, 75, 56, 43, 87, 38, 53, 22, 10, 85, 64
Right Column (top to bottom):
88, 61, 20, 65, 16, 19, 89, 55, 27
Parent Tip: Review the logic above to help your child master the concept of singapore math grade 2 worksheet.
