Regrouping Addition and Subtraction

Front

What is the inverse operation of addition?

Back

Subtraction

Front

What is the sum of 200 and 255?

Back

455

Front

What is the sum of 300 and 407?

Back

707

Front

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?

Back

338

Front

What is the difference between 800 and 172?

Back

628

Front

What does regrouping mean in addition?

Back

Regrouping means rearranging numbers to make addition easier, often by carrying over to the next place value.

Front

What does regrouping mean in subtraction?

Back

Regrouping means borrowing from the next place value to make subtraction possible.

Front

What is the sum of 45 and 67?

Back

112

Front

What is the difference between 90 and 45?

Back

45

Front

If you have 150 apples and give away 75, how many do you have left?

Back

75