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 is the sum of 56 and 22?

Back

78

Front

What is 54 minus 22?

Back

32

Front

If there are 19 frogs and 4 hop away, how many are left?

Back

15

Front

What is 25 + 4?

Back

29

Front

What is 75 - 7?

Back

68

Front

What does the plus sign (+) mean?

Back

The plus sign means to add.

Front

What does the minus sign (-) mean?

Back

The minus sign means to subtract.

Front

What is a number line?

Back

A number line is a straight line with numbers placed at equal intervals used to represent numbers and perform operations.