Addition and Subtraction with regrouping

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another.

Front

What does regrouping mean in addition?

Back

Regrouping in addition means carrying over a value from one column to the next when the sum exceeds 10.

Front

What does regrouping mean in subtraction?

Back

Regrouping in subtraction means borrowing a value from the next column when the top number is smaller than the bottom number.

Front

Calculate: 23 + 57 = ?

Back

80

Front

Calculate: 82 - 47 = ?

Back

35

Front

Calculate: 47 + 75 = ?

Back

122

Front

Calculate: 63 - 26 = ?

Back

37

Front

Calculate: 213 + 77 = ?

Back

290

Front

What is the sum of 10 and 5?

Back

15