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Number Bonds to 20 on bubbles

A maths facts tester for number facts to 20.

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Click on the button which combines with the number (top centre) to make the target number (below target number). Do you know your addition and subtraction facts for the numbers to 20?

The blue square can also be clicked, to reveal helpful number sentences at the top of the bubbles. The alarm clock will start a 1 minute timed game.


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