Addition & Subtraction Within 20 Using Number Line

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 does the number line represent?

Back

A number line is a straight line with numbers placed at equal intervals, used to visualize addition and subtraction.

Front

How do you add using a number line?

Back

To add using a number line, start at the first number and move to the right by the number of steps equal to the second number.

Front

How do you subtract using a number line?

Back

To subtract using a number line, start at the first number and move to the left by the number of steps equal to the second number.

Front

What is the sum of 10 + 5?

Back

15

Front

What is the sum of 7 + 8?

Back

15

Front

What is 12 - 4?

Back

8

Front

What is 15 - 9?

Back

6

Front

What is 18 - 5?

Back

13