Subtracting 9 from a 2-digit number

Four worksheets for practising subtracting 9 by subtracting 10 and adding 1.

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Some excellent mental arithmetic work on subtracting a single digit from a 2-digit number.

Quite tricky subtraction: taking a single digit from a multiple of 10.

Subtracting 9 by subtracting 10 and adding 1.

Today we are going to look at how we can use base ten blocks to help us subtract two 2-digit numbers, where we have to make an exchange.

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