Compose decimals from tenths and hundredths and watch a magnitude bar fill. Build exact decimals, beat a threshold, and land between two values — seeing exactly why 0.5 beats 0.45.
Children build a decimal by selecting tenths and hundredths pieces and watching a magnitude bar grow to reflect the total, then must hit an exact value, exceed a threshold, or fit between two bounds. The visual bar makes plain why a number like 0.5 is larger than 0.45 despite appearing shorter. Best for Grades 4–6, or anyone who finds decimal comparison confusing.
A free, no-signup, no-ads math game for Grades 4–6 — practising decimals, place-value, comparing. Play in your browser on the KidsDoMath games hub or explore more Arithmetic games.
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What math does Decimal Lab practice? Decimal Lab practices Decimals, Place Value, Comparing. Children build a decimal by selecting tenths and hundredths pieces and watching a magnitude bar grow to reflect the total, then must hit an exact value, exceed a threshold, or fit between two bounds.
What grade is Decimal Lab for? Decimal Lab is built for Grades 4–6 (ages 9–12). It sits in the Arithmetic strand, and it ramps across 8 levels so younger or older players find their own pace.
How do you play Decimal Lab? Compose decimals from tenths and hundredths and watch a magnitude bar fill. Build exact decimals, beat a threshold, and land between two values — seeing exactly why 0.5 beats 0.45.
Is Decimal Lab free to play? Yes. Decimal Lab is free, with no ads and no sign-up, and it runs in the browser on a phone, tablet or computer.