Let’s go step by step to solve this rounding worksheet.
We have two columns:
- Left column: Round each number to the
nearest 10
- Right column: Round each number to the
nearest 100
---
How to Round to the Nearest 10:
Look at the
ones digit (the last digit).
- If it’s 0, 1, 2, 3, or 4 → round down (keep the tens digit same)
- If it’s 5, 6, 7, 8, or 9 → round up (add 1 to the tens digit)
Example:
65 → ones digit is 5 → round up → 70
56 → ones digit is 6 → round up → 60
32 → ones digit is 2 → round down → 30
---
How to Round to the Nearest 100:
Look at the
tens digit (middle digit in a 3-digit number).
- If it’s 0, 1, 2, 3, or 4 → round down (keep the hundreds digit same, change rest to 0)
- If it’s 5, 6, 7, 8, or 9 → round up (add 1 to the hundreds digit, change rest to 0)
Example:
311 → tens digit is 1 → round down → 300
485 → tens digit is 8 → round up → 500
296 → tens digit is 9 → round up → 300
---
Now let’s solve each row:
#### Left Column — Round to nearest 10:
1. 65 → 70
2. 56 → 60
3. 32 → 30
4. 81 → 80
5. 28 → 30
6. 30 → 30 (already multiple of 10)
7. 49 → 50
8. 19 → 20
9. 42 → 40
10. 37 → 40
11. 12 → 10
12. 63 → 60
13. 96 → 100
14. 45 → 50
15. 74 → 70
#### Right Column — Round to nearest 100:
16. 311 → 300
17. 485 → 500
18. 296 → 300
19. 704 → 700
20. 239 → 200
21. 672 → 700
22. 593 → 600
23. 562 → 600
24. 925 → 900
25. 846 → 800
26. 749 → 700
27. 365 → 400
28. 183 → 200
29. 133 → 100
30. 654 → 700
All calculations checked and verified.
Final Answer:
Left Column (Round to nearest 10):
70, 60, 30, 80, 30, 30, 50, 20, 40, 40, 10, 60, 100, 50, 70
Right Column (Round to nearest 100):
300, 500, 300, 700, 200, 700, 600, 600, 900, 800, 700, 400, 200, 100, 700
Parent Tip: Review the logic above to help your child master the concept of basic rounding worksheet.
