Bell Work

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Bell Work Percent of a Number Percent Estimation $3.25 30% of 40 = 12 30% of 45 = 13.5

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Bell Work. Percent of a Number Percent Estimation. $3.25. 30% of 40 = 12 30% of 45 = 13.5. Percent Proportions. Percent Proportions. Percent Proportions. Percent Proportions (Finding a Percent). Percent Proportions  You Try (Finding a Percent). $12.75 = x - PowerPoint PPT Presentation

Transcript of Bell Work

Page 1: Bell Work

Bell Work

Percent of a Number

Percent Estimation$3.25

30% of 40 = 1230% of 45 = 13.5

Page 2: Bell Work

Percent Proportions

Page 3: Bell Work

Percent Proportions

Page 4: Bell Work

Percent Proportions

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Percent Proportions (Finding a Percent)

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Percent Proportions You Try (Finding a Percent)

20 = n 25 1002,000 = 25nn = 80%

$12.75 = x $50

100

1,275 = 50xx = 25.5%

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Percent Proportions (Finding a Part)

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Bell Work

Percent of a Number

Percent Estimation$3.25

30% of 40 = 1230% of 45 = 13.5

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Percent Proportions You Try (Finding a Part)

n = 5 60 100300 = 100nn = 3

p = 12 85 1001020 = 100pp = 10.2

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Percent Proportions (Finding a Whole)

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Percent Proportions You Try (Finding a Whole)

26 = 40 x 1002600 = 40xx = 65

80 = 75 x 1008000 = 75xx = 106.7

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Real World Example

200 = x_ 550 10020,000 = 550xx = 36.36%x = 36%

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Percents Review

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Percent of a Number

For the first six questions, find the number. Round the answer to the nearest tenth

if necessary.

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Percent of a Number

8% of 50

4

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Percent of a Number

95% of 40

38

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Percent of a Number

42% of 263

110.5

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Percent of a Number

110% of 70

77

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Percent of a Number

115% of 20

23

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Percent of a Number

130% of 78

101.4

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Percent Estimation

For the next four questions, use estimation, rather than finding the exact number.

Remember, make any numbers that aren’t easy to

work with a little easier.

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Percent Estimation

47% of 70

.45 x 70 = 31.5

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Percent Estimation

39% of 120

.40 x 120 = 48

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Percent Estimation

21% of 90

.20 x 90 = 18

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Percent Estimation

76% of 180

.75 x 180 = 135

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Percent Proportion

36% 10%

0.7 45

75 68.5

13 cups