Subtract from 3-digit numbers mentally

Try taking away a single digit from a 3-digit number. These include taking away from whole hundreds which can be quite tricky.

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Sometimes quite tricky subtractions can be made easy by counting up. Have a look at these to see why.

Subtracting multiples of 10 from 3-digit numbers.

Count back in tens from 3-digit numbers.

Skills to help with fast mental arithmetic.

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