Add and Subtract 2-Digit Numbers

Front

What is the sum of 26 and 52?

Back

The sum of 26 and 52 is 78.

Front

What is 59 minus 29?

Back

59 minus 29 equals 30.

Front

What is 43 minus 12?

Back

43 minus 12 equals 31.

Front

What is 83 minus 21?

Back

83 minus 21 equals 62.

Front

If Ms. Gordon gave Leo 25 tennis balls and he lost 12, how many does he have left?

Back

Leo has 13 tennis balls left (25 - 12 = 13).

Front

What is the definition of addition?

Back

Addition is the mathematical operation of combining two or more numbers to get a total.

Front

What is the definition of subtraction?

Back

Subtraction is the mathematical operation of taking one number away from another.

Front

What is a two-digit number?

Back

A two-digit number is a number that has two digits, ranging from 10 to 99.

Front

How do you check your addition?

Back

You can check your addition by reversing the operation and using subtraction to see if the original numbers are recovered.

Front

How do you check your subtraction?

Back

You can check your subtraction by adding the result to the subtracted number to see if you get the original number.