Let’s solve each rounding problem step by step.
We’ll use the standard rounding rule:
- Look at the digit to the right of the place you’re rounding to.
- If it’s 5 or more, round up.
- If it’s less than 5, round down (keep the number as is).
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Round to nearest 100:
1.
712 → ?
- The hundreds digit is 7. Look at the tens digit: 1.
- 1 < 5 → round down →
700
2.
365 → ?
- Hundreds digit: 3. Tens digit: 6.
- 6 ≥ 5 → round up →
400
3.
349 → ?
- Hundreds digit: 3. Tens digit: 4.
- 4 < 5 → round down →
300
4.
850 → ?
- Hundreds digit: 8. Tens digit: 5.
- 5 ≥ 5 → round up →
900
5.
123 → ?
- Hundreds digit: 1. Tens digit: 2.
- 2 < 5 → round down →
100
6.
681 → ?
- Hundreds digit: 6. Tens digit: 8.
- 8 ≥ 5 → round up →
700
7.
450 → ?
- Hundreds digit: 4. Tens digit: 5.
- 5 ≥ 5 → round up →
500
8.
505 → ?
- Hundreds digit: 5. Tens digit: 0.
- 0 < 5 → round down →
500
9.
173 → ?
- Hundreds digit: 1. Tens digit: 7.
- 7 ≥ 5 → round up →
200
10.
260 → ?
- Hundreds digit: 2. Tens digit: 6.
- 6 ≥ 5 → round up →
300
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Round to nearest 1000:
11.
3,850 → ?
- Thousands digit: 3. Hundreds digit: 8.
- 8 ≥ 5 → round up →
4,000
12.
7,241 → ?
- Thousands digit: 7. Hundreds digit: 2.
- 2 < 5 → round down →
7,000
13.
9,402 → ?
- Thousands digit: 9. Hundreds digit: 4.
- 4 < 5 → round down →
9,000
14.
6,230 → ?
- Thousands digit: 6. Hundreds digit: 2.
- 2 < 5 → round down →
6,000
15.
8,880 → ?
- Thousands digit: 8. Hundreds digit: 8.
- 8 ≥ 5 → round up →
9,000
16.
2,500 → ?
- Thousands digit: 2. Hundreds digit: 5.
- 5 ≥ 5 → round up →
3,000
17.
4,120 → ?
- Thousands digit: 4. Hundreds digit: 1.
- 1 < 5 → round down →
4,000
18.
6,870 → ?
- Thousands digit: 6. Hundreds digit: 8.
- 8 ≥ 5 → round up →
7,000
19.
6,130 → ?
- Thousands digit: 6. Hundreds digit: 1.
- 1 < 5 → round down →
6,000
20.
1,500 → ?
- Thousands digit: 1. Hundreds digit: 5.
- 5 ≥ 5 → round up →
2,000
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Final Answer:
1. 700
2. 400
3. 300
4. 900
5. 100
6. 700
7. 500
8. 500
9. 200
10. 300
11. 4,000
12. 7,000
13. 9,000
14. 6,000
15. 9,000
16. 3,000
17. 4,000
18. 7,000
19. 6,000
20. 2,000
Parent Tip: Review the logic above to help your child master the concept of rounding math worksheet.
