Number Bonds to 10 Game

Ten quick rounds. See a number, pick the number that adds to 10 with it. Free, no signup, no certificate.

Number bonds to 10 are the pairs that add to 10: 1 and 9, 2 and 8, 3 and 7, and so on. Knowing them by heart makes adding and taking away much faster. This game gives you 10 rounds. Each round shows a number and asks which number goes with it to make 10. Pick one of the four answers. A right answer scores a point. At the end you see your score and your best run of right answers.

Press start to play.

Score: 0 / 10

Round 1 of 10

Free to play, as many times as you like. No account, no score saved, no certificate. Scores stay in this page only.

How to play

Press start. A big number appears, for example 4, with the question "4 + ? = 10". Four answers appear below. Tap the one that makes 10 with the number shown. For 4 the answer is 6, because 4 + 6 = 10. A right answer scores one point and the next round starts. A wrong answer scores nothing and the game shows you the right pair, so you learn it before the next round. After 10 rounds the game shows your score out of 10 and your best run of right answers in a row. Press play again for a fresh set of 10 rounds.

All the pairs to 10

0 + 10, 1 + 9, 2 + 8, 3 + 7, 4 + 6, 5 + 5, 6 + 4, 7 + 3, 8 + 2, 9 + 1, 10 + 0. The game picks from all of them, so the 0 and 10 rounds come up too.

Why bonds to 10 matter

Adding past 10 is the step where most young children slow down. A child who knows 8 + 2 = 10 at once can work out 8 + 5 as 8 + 2 + 3 without counting on fingers. That is the whole point of the game.

Frequently Asked Questions

A pair of numbers that add to 10, such as 3 and 7 or 6 and 4. The game shows one number and asks for its partner.

Ten rounds, one point for each right answer, so the best score is 10 out of 10.

Mostly ages 5 to 8, which is when number bonds to 10 are taught in UK primary school. Older children can use it as a fast warm up.

No. Your score stays on this page only and is gone when you close it. There is no account and no leaderboard.

Yes. Press play again after a game ends and you get a fresh set of 10 rounds with new numbers.

Yes, free, with no signup and no certificate. It is a practice game, not a test.

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