Double Digit Addition and Subtraction

Front

What is double digit addition?

Back

Double digit addition is the process of adding two numbers that each have two digits, such as 23 + 45.

Front

What is double digit subtraction?

Back

Double digit subtraction is the process of subtracting one two-digit number from another, such as 76 - 34.

Front

What is the sum of 45 and 36?

Back

81

Front

What is the difference when you subtract 36 from 45?

Back

9

Front

What is 59 plus 11?

Back

70

Front

What is 60 plus 33?

Back

93

Front

What is the result of 57 minus 23?

Back

34

Front

What is 22 plus 29?

Back

51

Front

How do you carry over in addition?

Back

When the sum of a column is 10 or more, you write down the last digit and carry over the first digit to the next column.

Front

How do you borrow in subtraction?

Back

When the top number is smaller than the bottom number in a column, you borrow 1 from the next column to make it larger.