Let’s go through each section step by step.
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Section A: Round to nearest 10, 100, or 1000
We look at the digit just right of the place we’re rounding to. If it’s 5 or more, round up. If less than 5, round down.
1) 35 → (to 10): Look at ones digit = 5 → round up →
40
2) 14 → (to 10): ones digit = 4 → round down →
10
3) 521 → (to 10): ones digit = 1 → round down →
520
4) 4,108 → (to 10): ones digit = 8 → round up →
4,110
5) 197 → (to 10): ones digit = 7 → round up →
200
6) 715 → (to 100): tens digit = 1 → round down →
700
7) 962 → (to 100): tens digit = 6 → round up →
1,000
8) 1,841 → (to 100): tens digit = 4 → round down →
1,800
9) 2,977 → (to 1,000): hundreds digit = 9 → round up →
3,000
10) 18,814 → (to 1,000): hundreds digit = 8 → round up →
19,000
✔ All checked — correct.
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Section B: Round to nearest whole number
Look at the first decimal digit (tenths). If ≥5, round up. Else, keep whole number.
1) 0.6 → tenths = 6 → round up →
1
2) 0.19 → tenths = 1 → round down →
0
3) 1.7 → tenths = 7 → round up →
2
4) 5.3 → tenths = 3 → round down →
5
5) 4.81 → tenths = 8 → round up →
5
6) 0.219 → tenths = 2 → round down →
0
7) 18.086 → tenths = 0 → round down →
18
8) 299.5 → tenths = 5 → round up →
300
9) 783.444 → tenths = 4 → round down →
783
10) 999.55123 → tenths = 5 → round up →
1,000
✔ All checked — correct.
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Section C: Round to indicated decimal place
We focus on the digit *just after* the target place. If ≥5, round up the target digit. Else, leave it.
1) 2.16 → (tenth): hundredths = 6 → round up tenth →
2.2
2) 5.08 → (tenth): hundredths = 8 → round up →
5.1
3) 850.05 → (tenth): hundredths = 5 → round up →
850.1
4) 3.4729 → (tenth): hundredths = 7 → round up →
3.5
5) 6.9811 → (tenth): hundredths = 8 → round up →
7.0
6) 7.418 → (hundredth): thousandths = 8 → round up →
7.42
7) 11.164 → (hundredth): thousandths = 4 → round down →
11.16
8) 0.85512 → (hundredth): thousandths = 5 → round up →
0.86
9) 42.9966 → (hundredth): thousandths = 6 → round up → but 99 + 1 = 100 → carry over →
43.00
10) 4.12059 → (thousandth): ten-thousandths = 5 → round up →
4.121
✔ All checked — correct.
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Final Answer:
Section A:
1) 40
2) 10
3) 520
4) 4,110
5) 200
6) 700
7) 1,000
8) 1,800
9) 3,000
10) 19,000
Section B:
1) 1
2) 0
3) 2
4) 5
5) 5
6) 0
7) 18
8) 300
9) 783
10) 1,000
Section C:
1) 2.2
2) 5.1
3) 850.1
4) 3.5
5) 7.0
6) 7.42
7) 11.16
8) 0.86
9) 43.00
10) 4.121
Parent Tip: Review the logic above to help your child master the concept of rounding decimals worksheet 5th grade.