Subtraction: mental methods

Mental Methods of Subtraction

Much mental subtraction involves ‘counting on’ but slowly children should learn the answers to single digit subtraction. They can then progress to subtracting 2-digit numbers, decimals and money.

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Subtract from a single digit (pg 1 and 2)

Subtract from 10 (pg 1 and pg 2)

Subtract 9 from a 2-digit number

Subtract from a teen p1

Subtract 19 from 2-digit numbers

Subtract from multiples of 10 (p1 and p2)

Subtract from 100 (pg 1)

Subtract from multiples of 100 or 1000