Unit 2 Contents

Check-In: Questions 14–20

Solve the subtraction problems in Questions 14–19 using fraction circle pieces or another strategy. For each problem, first estimate whether the answer is closest to 0, , or 1.

14. Jackie is running a -mile race. How much farther does she have to go after she has run of a mile?
15. Ming is making cookies. Ming poured of a cup of sugar into a measuring cup. The recipe for cookie dough calls for of a cup of sugar. How much sugar should Ming take out of the measuring cup?
16. Shannon spent of her allowance on a CD and of her allowance on a movie. What fraction of her allowance does she have left?
17. Jerome lives of a mile from school. Lee Yah lives of a mile from school. How much farther from school does Jerome live than Lee Yah?

18. Mr. Moreno always fills up the gas tank in his car when there is tank left. The gas gauge of his car is shown. How much of the tank of gas does Mr. Moreno have to use before filling it up again? (Hint: Think of a number line.)
19. Solve each of the following subtraction problems. Write a number sentence to show how you solved each problem.
1. −
2. −
3. −
4. −
5. −
6. 1 −
7. −
8. −
20. Choose one problem from Question 19. Show or tell how to solve it with circle pieces and then with a multiplication strategy.