Measurement Conversions — Answer Key
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
3 feet = 24 inches because each foot has 8 inches.
Corrected: 3 feet = 36 inches because each foot has 12 inches and 12 × 3 = 36.
The corrected sentence is: "3 feet = 36 inches because each foot has 12 inches and 12 × 3 = 36.". The original sentence "3 feet = 24 inches because each foot has 8 inches." contained an error that needed to be fixed.
2. Fix the sentence:
2 pounds = 24 ounces because 1 pound equals 12 ounces.
Corrected: 2 pounds = 32 ounces because 1 pound equals 16 ounces and 16 × 2 = 32.
The corrected sentence is: "2 pounds = 32 ounces because 1 pound equals 16 ounces and 16 × 2 = 32.". The original sentence "2 pounds = 24 ounces because 1 pound equals 12 ounces." contained an error that needed to be fixed.
3. Fix the sentence:
2 gallons = 6 quarts because there are 3 quarts in a gallon.
Corrected: 2 gallons = 8 quarts because there are 4 quarts in a gallon and 4 × 2 = 8.
The corrected sentence is: "2 gallons = 8 quarts because there are 4 quarts in a gallon and 4 × 2 = 8.". The original sentence "2 gallons = 6 quarts because there are 3 quarts in a gallon." contained an error that needed to be fixed.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. 1 yard = 3 feet
There are 3 feet in 1 yard. (Remember: 3 feet = 1 yard, 12 inches = 1 foot.)
2. 4 cups = 2 pints
2 cups = 1 pint, so 4 cups = 2 pints.
3. 5,280 feet = 1 mile
By definition, 1 mile = 5,280 feet.
4. 48 ounces = 3 pounds
16 ounces = 1 pound. 48 ÷ 16 = 3 pounds.
Part C: Short Answer
Answer each question in one or two complete sentences.
1. A ribbon is 6 feet long. How many inches is that? Explain your reasoning.
Sample answer: Since 1 foot equals 12 inches, multiply 6 by 12 to get 72 inches.
6 feet × 12 inches/foot = 72 inches.
2. Why is it helpful to know measurement conversions in everyday life?
Sample answer: Measurement conversions help when cooking, building, or comparing products that use different units.
Students should give a real-world context where knowing how to convert between units is useful.