by M Hennessy

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

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

1. a. Find 20% of or d. Why is one fourth right? 80 x %

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

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

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

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? %

3. a. There is a discount of 25% off on a $60 pair of shoes. How much are the shoes? $15 c. Why is fifteen dollars wrong? %

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 $15.00 $ $45

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

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? %

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 $ $32.10

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

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

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 $75.00 $ $225

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