Arithmetic Grade Two

Lesson Thirty-four: Regrouping or Not

Regrouping or Not

You don't have to regroup any of these problems:

You don't have to regroup any of these problems: 23 35 41 63 24 + 1 + 2 + 3 + 4 + 5 --- --- --- --- --- 24 37 44 67 29

You DO regroup for these problems: 29 38 57 18 66 + 9 + 3 + 3 + 4 + 5 --- --- --- --- --- 38 41 60 22 71

If the sum of the digits in the ONE's column is greater than 9, then you MUST regroup!