Comparing Bits & Pieces

Unit Rate

100

The ratio of males to total students in a mathematics class is 18 to 30.

a. What fraction of the class is male? What percent is male?

18/30 = 60%

200

The ratio of yellow school buses to the total number of school buses at Oscoda Schools is 16 to 20.

1. What fraction of the buses are yellow? What percent is yellow?

16/20 = 80%

300

The local oil change place wants to keep track of the types of cars they change each hour. In the first hour, 20 cars came in and  4 of them were SUVs.

1. What is the ratio of SUVs to the number of cars changed?

2. Write this as a unit rate. 

4:20 = 1 SUV for every 5 cars 

400

The ratio of drums to the total number of instruments in the band is 9 to 30.

1. What fraction of instruments are drums? What percent are drums?

2. There are 6 clarinets in the band, what is the fraction for the number of clarinets in the band? What percent are clarinets? 

1. 9/30 = 30%

2. 6/30 = 20%

500

Blake was listening to his favorite radio station. He noticed that during one hour, 15 songs were played and 3 of them were by a group from Michigan.

1. Write this as a unit rate.

2. Suppose the station continues to play this ratio of songs. How many times will Blake hear songs by this same group in the next three hours?

1. 1 Michigan song for every 5 songs

2. 9 times 

What doesn't belong?

100

a. 1/4

b. 0.025

c. 25%

b. 0.025

200

a. 2/20

b. 0.10

c. 20%

c. 20%

300

a. 1/8

b. 0.125

c. 1.25% 

c. 1.25%

400

a. 1.4

b. 14/10

c. 1.4%

c. 1.4%

500

a. 1/3

b. 0.30

c. 33.3%

b. 0.30

How many are there?

100

How many fourths are in 5/4?

5

200

How many thirds are in -2 1/3?

7

300

How many tenths are in 1.3? 

13

400

How many fifths are in 1.4?

7

500

How many thirds are in -4 2/3

14

Correct order

100

Put in order from least to greatest:

0.3, 0.03, 0.35

0.03, 0.3, 0.35

200

Put in order from least to greatest:

-0.4, -0.08, -0.12

-0.4, -0.12, -0.08

300

Put the numbers in order from least to greatest:

 -0.19, 0.003, -0.2, 0.8

-0.2, -0.19, 0.003, 0.8

400

Put the numbers in order from least to greatest:

0.6, 0.69, 0.006, 0.064, 0.06

0.006, 0.06, 0.064, 0.6, 0.69

500

Put the numbers in order from least to greatest:

-6.00, -0.06, -0.6, -0.56, -0.005

-6.00, -0.6, -0.56, -0.06, -0.005

Conversions

100

Decimal to fraction: 0.7

7/10

200

Decimal to fraction: 0.016

16/1000

300

Fraction to decimal: -9/30

-0.3

400

Convert fraction to decimal:    -3   11/100

-3.11

500

Convert 3/8 to decimal and percent.

0.375 & 37.5%