# Doubling and Halving Maths Games For Year 3 (age 7-8)

### Double Numbers from One to Twenty

Our dinosaur twins really know their doubles: how many doubles can be completed in just 40 seconds?

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### Double Multiples of Five

Double multiples of 5 as fast as possible. If the number has 5 in the units I double the tens and add 10!

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When two numbers are consecutive it is often easier to add them by doubling and adjusting by 1.

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### Know Halves

Click on two dragons which have the same hidden totals to make them disappear.

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### Double Fives Up To Fifty

Use the arrow keys to doge the blue balls. Ten sets of doubling questions to answer to complete the game successfully.

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### Halve Whole Tens

Use the down arrow key to release the parachute in exactly the right spot. Use the right left keys to move the parachutist over the correct target.

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