Addition and Subtraction Regrouping

Subtraction is the inverse of what operation?

• Addition

• Multiplication

• Division

• Fractions

Take apart a number and write it another way

• addend

• subtrahend

• sum

• regrouping

The answer to an addition problem is called:

David took out 35 dog treats from the bag. Then he took out 24 more treats. Bulldog Bella ate 7 of the treats. How many treats does David have left?

• 52

• 59

• 66

45-27

• 18

• 19

• 17

• 14

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

• 20

• 30

• 25

• 15

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

• 20

• 30

• 25

• 15

49 + 37 =

Which number sentence do you need to regroup to solve?

• 74-21=?

• 52-19=?

• 43-23=?

• 77-50=?

When you join two numbers together to find the total you: