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Consecutive Numbers

An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

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Roll These Dice

Roll two red dice and a green dice. Add the two numbers on the red dice and take away the number on the green. What are all the different possibilities that could come up?

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Domino Square

Use the 'double-3 down' dominoes to make a square so that each side has eight dots.

How Do You Do It?

Stage: 2 Challenge Level: Challenge Level:1
Can you round the numbers up or down to help?
Can you 'picture' the calculation in your head somehow?
Perhaps you can use some number facts that you know well to help?
Does your answer sound reasonable?