Addition and Subtraction regrouping

Front

What is regrouping in addition?

Back

Regrouping in addition is when you combine numbers and if the sum is more than 10, you carry over the extra value to the next column.

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is when you borrow from the next column if the top number is smaller than the bottom number.

Front

76 - 28 = ?

Back

48

Front

92 - 89 = ?

Back

3

Front

47 + 16 = ?

Back

63

Front

23 + 48 = ?

Back

71

Front

75 + 19 = ?

Back

94

Front

What does it mean to carry over in addition?

Back

Carrying over means moving a value from one column to the next when the sum exceeds 10.

Front

What does it mean to borrow in subtraction?

Back

Borrowing means taking 1 from the next column to help subtract when the top number is smaller.

Front

What is the sum of 10 and 5?

Back

15