Add 2-digit numbers: no carrying

Addition of 2-digit numbers without crossing the tens boundary.

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Try adding a single digit to a multiple of 100. Four pages with the second pair getting quite difficult!

Clever tricks to add 9 quickly to any 2-digit number.

Some quickfire questions on adding multiples of 10 (2-digit numbers only)

More on adding pairs of multiples of 10.

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