I'll solve this rounding worksheet step by step.
Round to nearest 10 (problems 1-10):
To round to the nearest 10, I look at the ones digit:
- If it's 5 or more, round up
- If it's less than 5, round down
1. 67 → ones digit is 7, so round up to
70
2. 49 → ones digit is 9, so round up to
50
3. 35 → ones digit is 5, so round up to
40
4. 89 → ones digit is 9, so round up to
90
5. 75 → ones digit is 5, so round up to
80
6. 16 → ones digit is 6, so round up to
20
7. 22 → ones digit is 2, so round down to
20
8. 93 → ones digit is 3, so round down to
90
9. 25 → ones digit is 5, so round up to
30
10. 35 → ones digit is 5, so round up to
40
Round to nearest 100 (problems 11-20):
To round to the nearest 100, I look at the tens digit:
- If it's 5 or more, round up
- If it's less than 5, round down
11. 219 → tens digit is 1, so round down to
200
12. 144 → tens digit is 4, so round down to
100
13. 620 → tens digit is 2, so round down to
600
14. 550 → tens digit is 5, so round up to
600
15. 850 → tens digit is 5, so round up to
900
16. 905 → tens digit is 0, so round down to
900
17. 176 → tens digit is 7, so round up to
200
18. 350 → tens digit is 5, so round up to
400
19. 263 → tens digit is 6, so round up to
300
20. 649 → tens digit is 4, so round down to
600
Final Answer:
1. 70
2. 50
3. 40
4. 90
5. 80
6. 20
7. 20
8. 90
9. 30
10. 40
11. 200
12. 100
13. 600
14. 600
15. 900
16. 900
17. 200
18. 400
19. 300
20. 600
Parent Tip: Review the logic above to help your child master the concept of 3 digit rounding worksheet.
