1. 1.4 How Many MORE Stickers to 100?
Objective: I can find the difference between a 2 digit number and 100 using a number line.

2. Review
Casey’s dad went to the store and bought a container of 26 cupcakes for her birthday to bring to school. Since there were 34 kids in her class this wasn’t enough. Casey’s mom went to the store and bought another pack of 45 cupcakes. How many cupcakes did Casey have in all? Don’t forget to use UPS Check!
Adding by Place strategy Adding One Number in Parts Adding using a Number Line

3. Discussion Show this using a number line.
At the sticker station you can buy a sticker book to store your stickers in. Each page can hold 10 strips of 10 stickers. Oscar bought 72 train stickers and put them in his sticker book. Show that on the sticker book page to the right. How many more stickers would he need to get to 100?
______________________ more stickers
Show this using a number line.

4. Use a Number line to find the difference
Guided practice
Use a Number line to find the difference
Michelle bought 6 strips of stickers and 4 single stickers. How many more does she need to get to 100?

5. Use a Number line to find the difference
Guided practice
Use a Number line to find the difference
Jason’s friend gave him 2 strips of stickers and 3 single stickers. Derick, his brother gave him 4 more strips of stickers and six singles. How many more does he need to get to 100?

6. Independent Practice Left Side:
Roll 2 dice to create a 2 digit number. You must then figure out the difference to 100 by drawing a number line. Do this 5 times.
Challenge 1: Roll 2 dice to create a 2 digit numbers. Find the difference between that number and 500.
Challenge 2: Roll 3 dice to create a 3 digit number. Find the difference between that number and 1,000.