Klataza 🧮 Math
Unit 4 · Review: mixed problems
➕ Adding to 20
Name: ____________________Date: ____________
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Problems
- Which is bigger: 99 or 45?
- 6 + 4 =
- 8 − 7 =
- 7 + 4 =
- Which is bigger: 49 or 15?
- 5 + 3 =
- 2 − 1 =
- 7 + 8 =
- Which is bigger: 9 or 78?
- 8 + 0 =
- Which is bigger: 55 or 18?
- 2 + 1 =
- 8 + 6 =
- Which is bigger: 87 or 56?
- 1 + 2 =
- 9 − 2 =
- 5 + 9 =
- Which is bigger: 62 or 36?
- 6 + 1 =
- Which is bigger: 58 or 40?
Tip: Make 10 first, then add the rest.
Answer key
1. 99 · 2. 10 · 3. 1 · 4. 11 · 5. 49 · 6. 8 · 7. 1 · 8. 15 · 9. 78 · 10. 8 · 11. 55 · 12. 3 · 13. 14 · 14. 87 · 15. 3 · 16. 7 · 17. 14 · 18. 62 · 19. 7 · 20. 58