Customary Units
Metric Units
Customary to Metric Conversions
Ratios/ Rates
100

39,600 ft = _____mi

7.5 miles

100

The most appropriate metric unit to measure the mass of a penny. Grams or oz

What is a grams 

100

8 in = ____cm

What is 20 cm.

100

On a certain road map, the scale is 1 inch = 6 miles. Aurora Springs and Glendale are 7 inches apart on the map. What is the actual distance between Aurora Springs and Glendale?

42 miles

200
12 gal = ____ qt
What is 48 qt.
200
0.067 L = _____mL
What is 67 milliliters.
200

30 ft = ____ m

What is approximately 9.15 meters.

200

In the United States in 2003, the average person drank about 22 gallons of milk. Find this rate in quarts per month.

What is 7.3 qt per month.

300

Trayvon bought 2 gallons of milk at the supermarket. How many pints of milk did he buy?

use a conversion factor

16 pints

300
900 mg = ____g
What is 0.9 grams.
300
3 gal = ____ L
What is approximately 11.37 Liters.
300

 The ratio of boys to girls in Anya’s class is 10 to 15. There are 20 boys. How many girls are there?

What is 30

400

Jason bought 3.5 gallons of water. How many cups of water did he buy? 

Use a conversion factor

56 cups

3.5 gallons x 4 qt  x  2 pts x 2 cups =

     1              1 gal    1 qt    1 pt      

400

Dora cut a piece of string that is 2.5 meters long. What is the length of the piece of string in millimeters? 

Use a conversion factor.

What is 2500 mm.

400

You want to measure the length of a ribbon in inches. You only have a centimeter ruler. The length of the ribbon is 16 cm. Is the ribbon longer or shorter than 16 inches? How many inches long is it? 

shorter than 16 inches; about 6.3 inches

400

It takes Benjamin 28 minutes to mow2 lawns. Assuming the lawns are the same size and Benjamin works at the same speed, about how long will it take him to mow 5 lawns?

70

500
A whale weighs 1500 lb. A walrus weighs 1.6 tons. Which weighs more and how much more?
What is the walrus; 1,700 lb more.
500
A porcupine has a mass of 27 kg. A cat has a mass of 6,300 g. Which animal has the greater mass?
What is the porcupine.
500

A typical student ruler is 12 inches long. How long would two rulers be in centimeters?

What is 60.96 cm.

500

 On a certain map, 2.5 inches represents 15 miles. Bay City and Greenwood are 4 inches apart on the map. What is the actual distance between Bay City and Greenwood?

What is 24

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