Regrouping Addition and Subtraction

There are 347 students in the cafeteria. Of these, 123 are boys. How many of the students are girls?

Roxy counts 129 robins and

43 bluejays at her bird feeder. How many birds visit Roxy’s bird feeder?

Multi-Step There are 208 people in one movie theater. There are 78 fewer people in the next movie theater. How many people are in both movie theaters?

• 286

• 338

• 130

• 296

What is the inverse operation of addition?

• geometry

• subtraction

• What?

Find the difference.

Find the difference.

Find the sum.

Find the sum.

Find the difference.

200 - 136 =

Find the difference.

608 - 234 =