Written addition

Fill in the missing number in the written addition question.

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A nice gentle start to addition with numbers up to 20. The number grid can be used by those who are not confident with counting on.

Count objects in multiples of one hundred up to one thousand.

Add two 3-digit multiples of 10 not crossing the tens or hundreds boundaries.

Add two 3-digit multiples of 10 not crossing the tens or hundreds boundaries.

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