About Fill the Gap
Fill the Gap shows a math fact with one empty box, such as 3 + ? = 7. Your child works backward to find the number that makes it true and taps it. As kids grow, times and division facts join adding and taking away.
How to play
- Read the math fact and find the empty box.
- Tap the number that makes both sides equal.
- With a keyboard, the number keys pick the answers in order, starting with 1.
What your child practices
- Addition and subtraction facts
- Thinking backward
- Times and division facts
- What the equals sign means
How it grows with your child
LittleAges 4-6
Adding and taking away with numbers up to 10, and three choices.
YoungAges 6-8
Adding and taking away up to 20, plus times facts for 2, 5 and 10.
Big KidsAges 8-11
All four signs: adding and taking away up to 100, times and division up to 10 by 10.
Play together
Put seven buttons on the table, hide some under a cup and ask how many are hiding.
