Decimal Dash: Which Decimal Is Bigger?
Decimal Dash builds confidence comparing decimal numbers — a skill many students find surprisingly tricky. Two decimals appear, and you tap the larger one. The catch is that more digits do not always mean a bigger number, so you must compare place by place. Play solo or with up to three players who take turns racing the clock.
Game Modes & Timer
Choose 1, 2, or 3 Players. In multiplayer the device passes to the next player after each correct answer, giving everyone equal turns. Each round runs for a generous 75 seconds so players have time to think carefully about each comparison. The timer warns you in red for the final ten seconds before tallying the scores.
How to Play
Pick the number of players and press Start. Two decimal numbers appear as buttons; tap the one with the greater value to score a point. In multiplayer the turn rotates after each correct answer. Keep comparing until the 75-second timer ends and the highest scorer is crowned.
A Worked Example
Suppose the choices are 0.45 and 0.5. It is tempting to think 0.45 is bigger because it has more digits, but comparing tenths first shows 0.5 = 0.50, which is greater than 0.45. So you tap 0.5. Always line up the decimal points and compare from the left.
Strategy Tips
Compare digits place by place from the left: tenths first, then hundredths, and so on. Adding a trailing zero (writing 0.5 as 0.50) makes two decimals the same length and easier to compare. Never judge size by the number of digits — 0.9 is larger than 0.123.
Why It Helps Learners
Decimal Dash strengthens place-value understanding for decimals, which underpins money calculations, measurement, and rounding. Comparing decimals correctly is a common stumbling block, so the repeated, timed practice here builds the quick, accurate number sense students need across maths and science.
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