Addition and Subtraction using a Number Line

Front

What does a number line represent?

Back

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

Front

How do you add numbers using a number line?

Back

To add numbers, start at the first number and make jumps to the right for each unit of the second number.

Front

How do you subtract numbers using a number line?

Back

To subtract numbers, start at the first number and make jumps to the left for each unit of the second number.

Front

What is the starting point of a number line?

Back

The starting point of a number line can be any number, not just 0.

Front

What does each jump on a number line represent?

Back

Each jump on a number line represents a single unit increase or decrease in value.

Front

If you jump 3 spaces to the right from 5, what number do you land on?

Back

You land on 8.

Front

If you jump 4 spaces to the left from 10, what number do you land on?

Back

You land on 6.

Front

What is the equation for adding 5 and 3 on a number line?

Back

5 + 3 = 8.

Front

What is the equation for subtracting 2 from 7 on a number line?

Back

7 - 2 = 5.

Front

What does it mean if you land on a number after jumping on a number line?

Back

It means you have found the result of the addition or subtraction.