1. by D. Fisher

2. 1. a. What is 20% of 80? 4 b. Why is four wrong? %

3. 1. a. What is 20% of 80? 1600 c. Why is one thousand six hundred wrong? %

4. 1. a. Find 20% of 80. 16 or 16.00 d. Why is sixteen right? 80 x.20 00 160 16 00 %

5. 2. a. What is 35% of 20? 7.35 b. Why is seven and thirty-five hundredths wrong? %

6. 2. a. What is 35% of 20? 700 c. Why is seven hundred wrong? %

7. 2. a. Find 35% of 20. 7 or 7.00 d. Why is seven right? 20 x.35 100 60 7.00

8. 3. a. There is a discount of 25% off on a $60 pair of shoes. How much are the shoes? $25 b. Why is twenty-five dollars wrong? %

9. 3. a. There is a discount of 25% off on a $60 pair of shoes. How much are the shoes? $35 c. Why is thirty-five dollars wrong? %

10. 3. a. There is a discount of 25% off on a $60 pair of shoes. How much are the shoes? $45 d. Why is forty-five dollars correct? $60 x.25 300 120 $15.00 $60 - 15 $45

11. 4. a. A shirt cost $30 plus 7% tax. What is the total cost? $37 b. Why is thirty-seven dollars wrong? %

12. 4. a. A shirt cost $30 plus 7% tax. What is the total cost? $2.10 c. Why is two dollars and ten cents incorrect? %

13. 4. a. A shirt cost $30 plus 7% tax. What is the total cost? $32.10 d. Why is thirty-two dollars and ten cents correct? $30 x.07 $2.10 $30.00 + 2.10 $32.10

14. 5. a. A $300 bike is on sale. How much is the cost? $275 b. Why is two hundred seventy-five dollars wrong? %

15. 5. a. A $300 bike is on sale. How much is the cost? $75 c. Why is seventy-five dollars wrong? %

16. 5. a. A $300 bike is on sale. How much is the cost? $225 d. Why is two hundred twenty-five dollars correct? $300 x.25 1500 60 $75.00 $300 - 75 $225

17. 6. a. An i-pod cost $180 plus 6% tax. What is the total cost? $186 b. Why is one hundred eighty-six dollars wrong? %

18. 6. a. An i-pod cost $180 plus 6% tax. What is the total cost? $190.80 c. Why is one hundred ninety dollars and eighty cents right? $180 x.06 $10.80 $180.00 + 10.80 $190.80

19. 7. a. A $190 bike is on sale. How much is the cost with 5% tax? $155 b. Why is one hundred fifty-five dollars wrong? %

20. 7. a. A $190 bike is on sale. How much is the cost with 5% tax? $119.70 c. Why is one hundred nineteen dollars and seventy cents right? $190 x.40 000 760 $76.00 $190 - 76 $114 x.05 $5.70 $114.00 + 5.70 $119.70

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