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 from the next column when the top number is smaller than the bottom number.

Front

77 + 32 = ?

Back

109

Front

42 - 17 = ?

Back

25

Front

23 + 57 = ?

Back

80

Front

65 + 36 = ?

Back

101

Front

82 - 47 = ?

Back

35

Front

What is the sum of two numbers?

Back

The sum is the result of adding two or more numbers together.