Addition and Subtraction 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 finding the difference between two numbers by taking one number away from another.

Front

What is the sum of 56 and 31?

Back

87

Front

What is the sum of 28 and 35?

Back

63

Front

What is the sum of 54 and 36?

Back

90

Front

What is the sum of 51 and 27?

Back

78

Front

What is 72 minus 25?

Back

47

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

If you have 10 apples and you add 5 more, how many apples do you have?

Back

You have 15 apples.