Rounding numbers to the nearest hundred worksheet with balloon-themed exercises.

Let’s solve each problem step by step.

We are rounding to the nearest hundred.

Rule:
Look at the tens digit (the middle digit in a 3-digit number).
- If it’s 5 or more, round up the hundreds digit by 1, and change the last two digits to 00.
- If it’s 4 or less, keep the hundreds digit the same, and change the last two digits to 00.

Let’s go one by one:

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561 → tens digit is 6 → 6 ≥ 5 → round up → 500 + 100 = 600

429 → tens digit is 2 → 2 ≤ 4 → keep 400 → 400

648 → tens digit is 4 → 4 ≤ 4 → keep 600 → 600

671 → tens digit is 7 → 7 ≥ 5 → round up → 600 + 100 = 700

890 → tens digit is 9 → 9 ≥ 5 → round up → 800 + 100 = 900

350 → tens digit is 5 → 5 ≥ 5 → round up → 300 + 100 = 400

745 → tens digit is 4 → 4 ≤ 4 → keep 700 → 700

949 → tens digit is 4 → 4 ≤ 4 → keep 900 → 900

690 → tens digit is 9 → 9 ≥ 5 → round up → 600 + 100 = 700

856 → tens digit is 5 → 5 ≥ 5 → round up → 800 + 100 = 900

589 → tens digit is 8 → 8 ≥ 5 → round up → 500 + 100 = 600

362 → tens digit is 6 → 6 ≥ 5 → round up → 300 + 100 = 400

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Final Answer:
561 → 600
429 → 400
648 → 600
671 → 700
890 → 900
350 → 400
745 → 700
949 → 900
690 → 700
856 → 900
589 → 600
362 → 400