Add multiples of 100 with exchange

Add two 4-digit multiples of 100 whith exchange.

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Mental addition and subtraction of multiples of 100, including crossing over the thousands.

A mixed bag of addition and subtraction: good for seeing whether children can use their skills to add and subtract quickly ?in their heads?.

The standard written method for adding two 4-digit numbers.

Today we are looking at the formal, written method of addition. We are going to add two 4-digit numbers. 5,678 plus 2,789.

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