Add three single digit numbers

Try these addition of three, single digit numbers. Remember to look for pairs that make 10.

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What number do you need to add to make a total of 100? Probably the best way is to add on to the next whole ten and then count on in tens to 100.

Adding 9 or 11 to 3-digit numbers by adding 10 and adjusting.

Look for pairs of numbers that make 20 in these addition questions.

Practice with helping to know pairs of numbers that make 100.

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