Grade 4 Math Practice Test: Converting Units of Measurement
- Converting Units of Measurement
- 10 questions
- 12 minutes
These questions practice changing a larger unit into a smaller one in customary and metric units. Tip: when you change to a smaller unit, you need more of them, so multiply.
Tap an option to mark your answer. You can change your mind, or tap the same option again to leave the question blank. The correct answers and explanations appear when you finish the test.Tap an option to answer; tap it again to leave the question blank.
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Question 1
How many inches are in 5 feet?
Correct answer: B
There are 12 inches in 1 foot, so 5 feet = 5 × 12 = 60 inches. 17 comes from adding 5 + 12 instead of multiplying.
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Question 2
How many grams are in 3 kilograms?
Correct answer: D
1 kilogram = 1,000 grams, so 3 kilograms = 3 × 1,000 = 3,000 grams. 300 would be true if 1 kilogram were 100 grams.
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Question 3
How many minutes are in 4 hours?
Correct answer: A
One hour has 60 minutes, so 4 hours = 4 × 60 = 240 minutes. 400 treats an hour as 100 minutes.
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Question 4
How many centimeters are in 2 meters?
Correct answer: C
1 meter = 100 centimeters, so 2 meters = 200 centimeters. 2,000 is the number of millimeters in 2 meters.
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Question 5
A cooler holds 3 gallons of water. How many quarts is that?
Correct answer: D
There are 4 quarts in 1 gallon, so 3 gallons = 3 × 4 = 12 quarts. 6 would mean 2 quarts in a gallon, which is the number of pints in a quart.
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Question 6
A bag of rice weighs 2 pounds. How many ounces is that?
Correct answer: A
One pound is 16 ounces, so 2 pounds = 2 × 16 = 32 ounces. 24 uses 12, the number of inches in a foot.
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Question 7
A rope is 7 yards long. How long is it in feet?
Correct answer: B
There are 3 feet in 1 yard, so 7 yards = 7 × 3 = 21 feet. 70 treats a yard as 10 feet.
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Question 8
Which statement compares 3 kilometers and 2,500 meters correctly?
Correct answer: C
3 kilometers = 3,000 meters, and 3,000 - 2,500 = 500, so 3 km is longer by 500 m. 2,497 comes from subtracting 3 from 2,500 without converting.
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Question 9
A ribbon is 6 feet long. Kayla cuts it into pieces that are each 9 inches long. How many pieces does she get?
Correct answer: A
6 feet = 6 × 12 = 72 inches, and 72 ÷ 9 = 8 pieces. The feet must be changed to inches before dividing.
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Question 10
A movie is 2 hours 15 minutes long. How many minutes long is it?
Correct answer: B
2 hours = 120 minutes, and 120 + 15 = 135 minutes. 215 treats each hour as 100 minutes.
Questions you leave blank are not counted as wrong.
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