Rounding Decimal Numbers

Choose the decimal place to keep, look at the next digit, round down 0-4, round up 5-9

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About This Practice

Rounding decimals works exactly like whole numbers: keep as many decimal places as asked, then look at the next digit — 0–4 down, 5–9 up. Choose how many decimal places to keep and watch a long decimal become shorter and shorter, each version more precise than the last.

Understand rounding for decimals, learn the concept of rounding decimals

EasyEstimated Time: 10minroundingdecimalsbasics

How to Play

  1. Read the digits after the decimal point one by one.
  2. Choose how many decimal places to keep (one, two or three).
  3. Check the digit right after the last kept place.
  4. 0–4 drops it; 5–9 bumps the kept digit up first.
  5. Compare the different approximations — which one is more precise?

Learning Objectives

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