KidsOnline

About Number Line Jumper

The number line is one of the most powerful tools in early math — it makes counting, place value, and even negative numbers visual. Number Line Jumper turns that classroom tool into a game your child can play in 90 seconds.

Three task types

Ranges

Levels scale from 0–10 up to 0–1000 (in jumps of 100), and include a negatives level (−10 to 10) to introduce integers gently.

Recommended for

Ages 5–9. Aligns with K–3 expectations around counting, place value, skip counting, and an introduction to negative numbers.

How to play

  1. Read the prompt at the top.
  2. Tap on the line where you think the answer is. The jumper snaps to the nearest tick.
  3. Tap Submit to lock in your answer.
  4. Use Clear to reposition.

For grown-ups

A teacher customising a learning game on her laptop

Are you a teacher?

Make the games your own

Build your own quizzes, fill our word games with your class's words, pictures and voice, and see what every child understood. One class link, no student logins. Free for teachers.

Explore teacher tools
A father checking his daughter's progress on his phone while she plays

Are you a parent?

See how your child is really doing

A free parent account saves your child's progress in every game and shows where they shine and what to practise next. No ads, no tracking.

See the parent dashboard