Number Line Addition and Subtraction

Front

What is a number line?

Back

A number line is a straight line that shows numbers in order. It helps us see how numbers are related to each other.

Front

How do you add numbers using a number line?

Back

To add numbers on a number line, start at the first number and move to the right by the number of spaces equal to the second number.

Front

How do you subtract numbers using a number line?

Back

To subtract numbers on a number line, start at the first number and move to the left by the number of spaces equal to the second number.

Front

What does it mean to 'move to the right' on a number line?

Back

Moving to the right on a number line means you are adding, and the numbers get larger.

Front

What does it mean to 'move to the left' on a number line?

Back

Moving to the left on a number line means you are subtracting, and the numbers get smaller.

Front

If you start at 3 and add 2 on a number line, where do you end up?

Back

You end up at 5.

Front

If you start at 7 and subtract 4 on a number line, where do you end up?

Back

You end up at 3.

Front

What is the result of adding 0 to any number on a number line?

Back

The result is the same number; adding 0 does not change the value.

Front

What is the result of subtracting a number from itself on a number line?

Back

The result is 0; any number minus itself equals zero.

Front

What is a 'jump' on a number line?

Back

A 'jump' is the movement from one number to another, either to the right (addition) or to the left (subtraction).