🛡 Math Base Defense — a free maths game for kids
Numbered invaders march down five lanes. Only the tower whose expression matches can stop them.
Base Defense trains flexible number sense under gentle pressure. A child who can only compute 3×4 one way will fall behind the wave; a child who recognises 12 as 3×4, 6+6 and 24÷2 clears it comfortably. That recognition is the whole point.
How to play
- 1Invaders walk down the lanes, each carrying a number.
- 2Your towers each show an expression — 3×4, 7+4, 24÷2.
- 3Tap the tower that equals the invader's number to fire.
- 4Survive the wave, then spend stars on upgrades before the next one.
Frequently asked questions
- Is it stressful for younger children?
- The invaders move slowly on the lower grade bands, and a leaked invader costs a shield rather than ending the game. There is always another wave.
- What maths appears at each grade?
- Kindergarten and Grade 1 use addition and subtraction facts, Grade 2 adds skip counting, Grade 3 and 4 use multiplication and division, and Grade 5 brings fractions and decimals into the same lanes.
- Are there upgrades?
- Yes — stars earned in a wave buy tower upgrades between waves, which is the reason to keep clearing waves cleanly.
- Is Math Base Defense free?
- Yes. Free, no signup, no ads, playable in the browser.