Percent Review Part 1

Fraction to Percent

100

7/10

70%

200

17/25

68%

300

27/90

30%

400

45/75

60%

500

18/27

67%

Decimal to Percent

100

.82

82%

200

0.41

41%

300

0.07

7%

400

.8

80%

500

1

100%

Estimating Percent

100

 42 out of 52

around 80%

200

$19.99 compared to $79.97

around 25%

300

18/47

around 40%

400

29 seconds out of a minute

around 50%

500

Bones account for about 20% of a person’s total mass. Estimate the mass of the bones in a 62 kg person.

around 12 kg

Which is larger

100

 15%  or 0.2

0.2

200

1/4 or 25%

equal

300

2/3 or 70%

70%

400

4/12  or 40%

40%

500

23/46  or 48%

23/46

A bit of everything

100

 There are 16 children and 24 adults at an art show. What percent of the people are adults?

24/40 = 60%

200

 Barry got 17 out of 20 on a science test and 39 out of 50 on a math test. On which test did he do better?

He did better on his math test

300

Tracy and Tristan both earn a percent of any sales they make at a furniture store. Last month, Tracy earned $750 on sales of $5000, and Tristan earned $825 on sales of $6875. Who earns the greater percent? Show how you know.

Barry earned 3% more than Tracy

400

Sophie Ruth is eating a 50-gram chocolate bar which contains 30% cocoa. How many grams of cocoa are in the bar

15 grams

500

A zoo has 15 Emperor penguins.  The Emperor penguins make up 30% of all the penguins at the zoo. How many penguins live at the zoo?

50 penguins