Let’s go through each problem one by one. We’ll round each decimal to the place indicated — like whole number, tenth, hundredth, or thousandth.
Remember:
- To round to a
whole number, look at the digit right after the decimal point (the tenths place). If it’s 5 or more, round up. If less than 5, keep the whole number as is.
- To round to the
tenth, look at the hundredths place.
- To round to the
hundredth, look at the thousandths place.
- To round to the
thousandth, look at the ten-thousandths place.
---
1.
0.43 → whole number
Look at tenths: 4 → less than 5 → round down →
0
2.
6.02 → tenth
Look at hundredths: 2 → less than 5 → keep tenths →
6.0
3.
6.651 → whole number
Tenths = 6 → 5 or more → round up →
7
4.
0.202 → hundredth
Thousandths = 2 → less than 5 → keep hundredths →
0.20
5.
7.22 → whole number
Tenths = 2 → less than 5 →
7
6.
0.660 → tenth
Hundredths = 6 → 5 or more → round up tenths → 6 becomes 7 →
0.7
7.
8.28 → tenth
Hundredths = 8 → round up → 2 becomes 3 →
8.3
8.
9.87 → whole number
Tenths = 8 → round up →
10
9.
7.0760 → hundredth
Thousandths = 6 → round up → 7 becomes 8 →
7.08
10.
3.629 → tenth
Hundredths = 2 → less than 5 → keep tenths →
3.6
11.
7.865 → whole number
Tenths = 8 → round up →
8
12.
5.2182 → thousandth
Ten-thousandths = 2 → less than 5 → keep thousandths →
5.218
13.
5.6967 → thousandth
Ten-thousandths = 7 → round up → 6 becomes 7 →
5.697
14.
2.9 → whole number
Tenths = 9 → round up →
3
15.
4.0 → whole number
Already a whole number →
4
16.
7.46 → tenth
Hundredths = 6 → round up → 4 becomes 5 →
7.5
17.
2.39 → tenth
Hundredths = 9 → round up → 3 becomes 4 →
2.4
18.
3.896 → whole number
Tenths = 8 → round up →
4
19.
7.8143 → whole number
Tenths = 8 → round up →
8
20.
9.3959 → hundredth
Thousandths = 5 → round up → 9 becomes 10 → so 39 becomes 40 →
9.40
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Final Answer:
1. 0
2. 6.0
3. 7
4. 0.20
5. 7
6. 0.7
7. 8.3
8. 10
9. 7.08
10. 3.6
11. 8
12. 5.218
13. 5.697
14. 3
15. 4
16. 7.5
17. 2.4
18. 4
19. 8
20. 9.40
Parent Tip: Review the logic above to help your child master the concept of rounding decimal numbers worksheet.
