1. Review 1.9 Reminder: There is a quiz tomorrow!
*I can recognize and demonstrate the equivalence of one 100 to 10 tens and of one 10 to ten 1s.
*I can solve addition problems with 2 digit numbers by using strategies that involved breaking numbers apart by place or adding one number in parts.
*I can find the difference between a 2-digit number and 100.
*I can find different combinations of 100s, 10s, and 1s for a number and recognize their equivalence.

2. Partner Jeopardy
Directions: You will get with a clock partner. You will work together to solve the review problems. You must solve on a lined piece of paper (both partners) and then show your answer on the white board. If you get the answer correct record the number of points that question is worth. At the end you will add up your points.

3. Use the add by place strategy.
5 Points
Add
Use the add by place strategy.

4. 5 Points
Add
Use the break apart one number strategy.

5. 5 Points
List three different strategies that you can do to add.

6. 5 Points
List 3 different strategies you can use to subtract.

7. 10 points
What number does this image represent? How do you know?

8. 10 Points
What number does this image represent now?

9. 15 Points
The number is 84. What is two other ways to represent 84 not using 8 tens and 4 ones?

10. 15 Points
Give 3 ways you can represent 91 using place value blocks not using 9 tens and 1 one.

11. 20 points
Max is playing Collect $2.00, but he keeps forgetting to trade his coins. He has 13 dimes and 23 pennies. How much money does he have?

12. 20 Points
You’ve shown that Max can trade his 13 dimes for 1 dollar and 3 dimes and his 23 pennies for 2 dimes and 3 pennies.
How much more money does Max need to get to $2.00?

13. 25 Points
Sarah has 42 Pokemon cards. How many more does she need to get to 100? Use a number line to solve.

14. 25 Points
Ivan collected stamps from around the world. The last time he counted, he had 36 stamps in his collection. His uncle just gave him 26 more stamps from Portugal. How many stamps does he have now?

15. 30 Points
Ms. Ashford went to the mall. She bought 23 pairs of shoes. The next day she went back because there was a sale and bought 45 more. How many does she have now? Write the equation for this problem (5 extra points)

16. 30 Points Solve the following problem using 3 different strategies.
= _____

17. 35 Points
What is an equation?
Give an example.