Let’s work through each problem step by step.
We are rounding to the
nearest tenth. That means we look at the digit in the
hundredths place (the second digit after the decimal) to decide whether to round up or keep the tenths digit the same.
Rule:
- If the hundredths digit is 5 or more, round up the tenths digit.
- If it’s less than 5, leave the tenths digit as is.
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First Set:
1) 7.16 → Hundredths digit is 6 → ≥5 → Round up → 7.2
2) 7.86 → 6 ≥5 → Round up → 7.9
3) 8.29 → 9 ≥5 → Round up → 8.3
4) 7.55 → 5 ≥5 → Round up → 7.6
5) 5.54 → 4 <5 → Keep → 5.5
6) 1.74 → 4 <5 → Keep → 1.7
7) 3.67 → 7 ≥5 → Round up → 3.7
8) 6.88 → 8 ≥5 → Round up → 6.9
9) 8.66 → 6 ≥5 → Round up → 8.7
10) 3.72 → 2 <5 → Keep → 3.7
✔ All checked — correct!
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Second Set:
Now these have three decimal places. We still round to the nearest tenth — so we look at the
hundredths digit (second after decimal), ignore the thousandths for now.
1) 7.832 → Hundredths = 3 → <5 → Keep → 7.8
2) 5.572 → Hundredths = 7 → ≥5 → Round up → 5.6
3) 4.843 → Hundredths = 4 → <5 → Keep → 4.8
4) 4.314 → Hundredths = 1 → <5 → Keep → 4.3
5) 3.469 → Hundredths = 6 → ≥5 → Round up → 3.5
6) 4.438 → Hundredths = 3 → <5 → Keep → 4.4
7) 5.732 → Hundredths = 3 → <5 → Keep → 5.7
8) 7.673 → Hundredths = 7 → ≥5 → Round up → 7.7
9) 4.573 → Hundredths = 7 → ≥5 → Round up → 4.6
10) 2.653 → Hundredths = 5 → ≥5 → Round up → 2.7
✔ All checked — correct!
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Final Answer:
7.2, 7.9, 8.3, 7.6, 5.5, 1.7, 3.7, 6.9, 8.7, 3.7, 7.8, 5.6, 4.8, 4.3, 3.5, 4.4, 5.7, 7.7, 4.6, 2.7
Parent Tip: Review the logic above to help your child master the concept of math decimal worksheet.
