Select a game mode — Decimal for practicing conversion between decimals, fractions and percentages, and Integer for practicing addition. The values move each player's marker that amount towards the center, or away from the center if already there. The score reflects the distance of the marker from the center, and bonus points are awarded for landing exactly at the center.

One Hit Wonder
How close can you get to 1.0?

Game mode:  Speed: 

Level:  Values: 

Choose a value: