How to play
A decimal question appears above the race track — 3.7 + 2.1 to start with, and later a decimal times a whole number, or a choice between two decimals. Tap the tile with the right answer and the rocket eases one eighth of the way along the track; eight correct answers cross the finish line and win the race. A wrong tap shakes the rocket, costs a life and leaves the same question up, so there is always another try. After two misses a hint appears with the method to use — line up the decimal points — never the answer itself.
What your child will learn
- Understand decimal place value
- Perform operations with decimals
Skills practiced
- Place value
- Money math
Why this age range
Recommended for grades 5–6 because decimals are typically introduced in grade 4 (tenths only) and consolidated in grade 5 (full place-value system). The game presumes the child can read multi-digit numbers and do basic addition, both of which arrive solidly by grade 5. Younger children can play but won't get the place-value intuition that's the point.
Curriculum standards
- CCSS.MATH.5.NBT.A.3
- CCSS.MATH.5.NBT.B.7
Notes for parents
The classic decimal misconception — that 0.45 is greater than 0.5 because 45 > 5 — gets explicit attention in this game. Wrong answers prompt a quick "compare the tenths column first" hint; correct answers move on without ceremony. If your child gets stuck on a particular pattern (e.g. always overestimating thousandths), pause the game and pull out a measuring cup or a price tag. Real-world reference points fix decimal misconceptions faster than more screen practice.