Convert between customary and metric units

Answer Key - Grade 7 Math Worksheet - Challenge Me

Circle the best answer, or write your answer on the line.

1. 1.

   Esme ran 12 kilometers, and a friend ran 9 miles. Remember: 1 mile is about 1.6 kilometers. Which run was farther?

   • 9 miles
   • They are the same.
   • 12 kilometers
2. 2.

   Kira's bag weighs 20 pounds, and a friend's bag weighs 8 kilograms. Remember: 1 kilogram is about 2.2 pounds. Which bag is heavier?

   • 20 pounds
   • They are the same.
   • 8 kilograms
3. 3.

   Zee's bucket holds 6 liters, and a friend's holds 2 gallons. Remember: 1 gallon is about 3.8 liters. Which bucket holds more?

   • They are the same.
   • 6 liters
   • 2 gallons
4. 4.

   Kira bikes 10 miles each hour for 4 hours (and waves at every dog). Remember: 1 mile is about 1.6 kilometers. Using this fact, how many kilometers is the whole ride?

   64
5. 5.

   A school bus drives 50 miles each hour for 2 hours to the zoo with Zee on board. Remember: 1 mile is about 1.6 kilometers. Using this fact, how many kilometers is the trip?

   160
6. 6.

   Tala uses 3 ounces of flour in each batch of cookie dough and makes 10 batches. Remember: 1 ounce is about 28 grams. Using this fact, how many grams of flour is that in all?

   840
7. 7.

   Luz's bedroom floor is 12 feet by 10 feet (with one very big beanbag). Remember: 1 foot is about 0.3 meter. Using this fact, how many square meters is the floor?

   10.8
8. 8.

   Luz's recipe needs 5 cups of milk. Remember: 1 cup is about 240 milliliters, and 1000 milliliters make 1 liter. Using this fact, how many liters is that?

   1.2
9. 9.

   Ren's cookie dough weighs 50 ounces. Remember: 1 ounce is about 28 grams, and 1000 grams make 1 kilogram. Using this fact, how many kilograms is the dough?

   1.4
10. 10.

    Jun buys a bag of apples that weighs 4 pounds. Remember: 1 pound is about 450 grams, and 1000 grams make 1 kilogram. Using this fact, how many kilograms is the bag?

    1.8