Represent Regrouping for Addition and Subtraction

What addition problem do these base ten blocks represent?

• 35+29

• 28+39

• 29+38

• 38+29

Taking away a smaller number from the big number is called

• addition

• subtraction

Find the difference.

Find the sum.

Which number sentence do you need to regroup to solve?

• 74-21=?

• 52-19=?

• 43-23=?

• 77-50=?

Add 567 and 398. How many tens need to be regrouped?

• 20

• 30

• 25

• 15

When subtracting or adding with regrouping we start with the Ones Places.

• True

• False

Find the sum.