Add a number near 1,000

Add a number near to 1,000 by adjusting.

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Adding on to the next whole hundred, and then on to the next whole thousand.

Adding a single digit to a 3-digit number; there might well be plenty of counting on fingers here!

Without using paper and pencil practise adding three small numbers as well as adding two 2-digit numbers.

Today we are going to look at a quick way that you can add numbers such as 999 to a 4-digit number.