Adding and Subtracting within 100

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 the plus sign (+) mean?

Back

The plus sign means to add numbers together.

Front

What does the minus sign (−) mean?

Back

The minus sign means to subtract one number from another.

Front

What is the sum of 5 and 3?

Back

8

Front

What is the difference when you subtract 2 from 10?

Back

8

Front

If you have 20 apples and you buy 15 more, how many apples do you have?

Back

35 apples.

Front

If you have 50 candies and you give away 20, how many candies do you have left?

Back

30 candies.

Front

What is 67 + 12?

Back

79

Front

What is 75 - 7?

Back

68