Adding two two-digit numbers When a number problem uses two two-digit numbers, we break down the numbers into tens and ones. 55 + 34 = ? Start with the tens and add them together. 5 tens + 3 tens ...

Place value in two-digit numbers When you are solving an addition calculation with a two-digit number, you need to think about tens and ones.

Join Mrs. Markavich for a missing addend word problem with Professor Barble! Next look out for two of favorite Math Might friends D.C. and Value Pak as they help use learn to add two-digit number ...