Help Emma answer a subtraction problem. She wants to find 13 take away 7.
First, she took away 3 to make 10. How much is left to take away?
What is 13 take away 7?
Look at how James used a number line to find 15 take away 8.
First, he took away 5 to make 10.
How much was left to take away?
What is 15 take away 8?
Use the number line to subtract.
Hint: Subtract to make 10 first.