Rounding Whole Numbers and Decimals Mixed Practice Worksheet | PDF ... - Free Printable

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