Addition and Subtraction Within 20

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 11 and 5?

Back

16

Front

If John has 15 apples and gives away 5, how many does he have left?

Back

10 apples.

Front

What is 14 minus 7?

Back

7

Front

What is 18 minus 4?

Back

14

Front

What is 14 minus 8?

Back

6

Front

What does it mean to 'count back' in subtraction?

Back

Counting back means to subtract by counting down from the starting number.

Front

What is the equation for adding 5 to 11?

Back

11 + 5 = 16

Front

What is the equation for subtracting 5 from 15?

Back

15 - 5 = 10