3.02 Subtraction and number lines
Lesson
Are you ready?
Remembering how to count back can help us with subtracting on a number line.
Try this question to help you remember.Find the next number in the pattern:
$33$33, $28$28, $23$23, $18$18, $13$13, $8$8, $\editable{}$
Learn
We are going to use a number line to see how to find the difference between two numbers.
Apply
Use the number line to help you find the value of $46-12$46−12.
$46-12$46−12$=$=$\editable{}$
Remember!
When adding to a number, jump forward (to the right).
When subtracting from a number, jump backwards (to the left).
