Understanding Percent

[Pages:3]Understanding Percent

Got It? for Part 1

Write a percent for each shaded part of the grid.

B A

C

1. A 2. B 3. C

Got It? for Part 2

Write each fraction as a percent. 1. _13_070_

2. _23_5

3. _25_

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Understanding Percent (continued)

Got It? for Part 3

Write each decimal as a percent. 1. 0.50

2. 0.34

3. 0.7

Lesson Check

Do You Know HOW? 1. Write a percent for the shaded part of

the grid.

Write each fraction as a percent. 2. _25 _10 3. _13_0 4. _45_ Write each decimal as a percent. 5. 0.17

6. 0.6

Do You UNDERSTAND?

8. VOCABULARY What is a percent? What symbol is used to represent percent?

____________________________

____________________________

____________________________

9. REASONING In Exercise 2, what did you multiply the terms of the ratio by to find the equivalent percent? Explain.

____________________________

____________________________

____________________________

10. ERROR ANALYSIS Your friend says 0.7 equals 7%. Is your friend correct? If not, what mistake did your friend make?

____________________________

____________________________

____________________________

7. 0.89

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Journal ANSWER KEY

Understanding Percent

Got It? for Part 1 1. 20% 2. 67% 3. 13%

Got It? for Part 2 1. 37% 2. 12% 3. 40%

Got It? for Part 3 1. 50% 2. 34% 3. 70%

Lesson Check

1. 23%

2. 42%

3. 30%

4. 80%

5. 17%

6. 60%

7. 89%

8. Sample answer: A percent is a ratio that compares a number to 100; the percent symbol is %.

9. Sample answer: I multiplied the terms of the ratio by 2 since 50 times 2 is 100 and percent means out of 100.

10. Sample answer: Incorrect; my friend only moved the decimal point 1 place to the right instead of 2 places. The correct answer is 70%.

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