Mental math strategies

Mental mathMake round numbers

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Find the two numbers that make 100 and use them first.

Mental mathRound and adjust (+ −)

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Use the round number, then adjust.

Mental mathFriendly pairs (×)

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Find the pair that makes a round number and multiply it first.

Mental mathRound and adjust (×)

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Use the round number, then adjust.

Mental mathSplit and combine

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Split or combine to make the multiplication easy.

Mental mathDivide in steps

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Divide in easy steps.

Mental mathMixed strategies

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Find the easy way, then work it out.