2-digit Addition and Subtraction

Front

What is 2-digit addition?

Back

2-digit addition is the process of adding two numbers that each have two digits, such as 48 + 27.

Front

What is 2-digit subtraction?

Back

2-digit subtraction is the process of subtracting one 2-digit number from another, such as 95 - 8.

Front

What is the sum of 48 + 27?

Back

75

Front

What is the sum of 54 + 39?

Back

93

Front

What is 95 - 8?

Back

87

Front

What number do you add to 45 to get 50?

Back

5

Front

What number do you subtract from 50 to get 40?

Back

10

Front

What is the first step in solving 2-digit addition?

Back

Line up the numbers by their place values (tens and ones).

Front

What is the first step in solving 2-digit subtraction?

Back

Line up the numbers by their place values (tens and ones).

Front

What do you do if the sum of the ones place is 10 or more?

Back

You carry over 1 to the tens place.