A LITTLE NUMBER PRACTICE
Number Hop
Choose a direction. Hop along the number line to solve each sum.
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A LITTLE NUMBER PRACTICE
Choose a direction. Hop along the number line to solve each sum.
The game could not load. Your instructions are still below.
Your question will wait here.
Modelling addition and subtraction with directed hops within 20. Suggested ages 5–9. Readiness matters more than age.
Choose addition and subtraction within 10 or 20. Six equations alternate addition and subtraction. Choose forward or backward, then move one or five spaces, undo, and check the landing. The number line, equation, current landing and hop count stay visible. The exact required direction and distance are checked, so an answer reached by a reverse path does not pass. Wrong attempts permit undo or reset. Show me demonstrates the first Hop 1 or Hop 5, its direction, first landing and distance left. It keeps your own hops unchanged. Correct answers wait for Next. Completion and replay preserve the chosen range.
Use labelled buttons with touch, Tab and Enter. Replay Show me whenever useful. A grown-up may need to read the first instruction. There is no speech or required sound. Number models have text descriptions; manual screen-reader and child testing are pending.
Practice stays on this page. The optional player profile is stored on this device only when explicitly saved. No game scores or history are stored. This local draft is still under review. Visit all games.