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Changing Percents by D. Fisher 1. a. The Soccer team is raising $800 for equipment. It is 50% of the way to the goal. How much money has been raised? 100% $800 $50 75% $600 50% $400 25% $200 b. Why is this answer wrong? 0 % $0

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slide1

Changing Percents

by D. Fisher

slide2
1. a. The Soccer team is raising $800 for equipment. It is 50% of the way to the goal. How much money has been raised?

100%

$800

$50

75%

$600

50%

$400

25%

$200

b. Why is this answer wrong?

0 %

$0

slide3
1. a. The Soccer team is raising $800 for equipment. It is 50% of the way to the goal. How much money has been raised?

100%

$800

$400

75%

$600

50%

$400

25%

$200

c. Why is this answer right?

0 %

$0

2 a change 40 to a decimal
2. a. Change 40% to a decimal.

40

%

b. Why is this answer wrong?

2 a change 40 to a decimal5
2. a. Change 40% to a decimal.

.40

c. Why is this answer right?

0.40 or 0.4 or .4

40%

= .40

3 a change 20 to a fraction in lowest terms
3. a. Change 20% to a fraction in lowest terms.

.20

%

b. Why is this answer wrong?

3 a rewrite 20 to as a fraction in simplest form
3. a. Rewrite 20% to as a fraction in simplest form.

20/100

%

c. Why is this answer incorrect?

3 a change 20 to a fraction in simplest form

20

20 ÷ 20

1

=

=

100

100 ÷ 20

5

3. a. Change 20% to a fraction in simplest form.

1/5

1/5

1/5

1/5

1/5

1/5

d. Why is this answer correct?

4 a change 0 6 to a percent
4. a. Change 0.6 to a percent.

6 %

%

b. Why is this answer wrong?

4 a rewrite 0 6 as a percent
4. a. Rewrite 0.6 as a percent.

60%

c. Why is this answer right?

0.6

= 60%

5 a change 8 3 to a decimal
5. a. Change 8.3% to a decimal.

0.83

%

b. Why is this answer wrong?

5 a rewrite 8 3 as a decimal
5. a. Rewrite 8.3% as a decimal.

0.083

%

c. Why is this answer correct?

8.3%

= 0.083

6 a rewrite 2 5 as a percent
6. a. Rewrite 2/5 as a percent.

25%

%

b. Why is this answer wrong?

6 a change 2 5 to a percent
6. a. Change 2/5 to a percent.

.40%

%

c. Why is this answer incorrect?

6 a change 2 5 to a percent15

5 ) 2

6. a. Change 2/5 to a percent.

40%

.4

.4 = .40 = 40%

.0

2 0

d. Why is this answer correct?

7 a change 135 to a decimal
7. a. Change 135% to a decimal.

0.135

%

b. Why is this answer incorrect?

7 a write 135 as a decimal
7. a. Write 135% as a decimal.

1.35

%

b. Why is this answer right?

135%

= 1.35

remember how to
Remember how to

Change Percents!