Measuring Length — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. The best unit to measure a banana is inches.
A banana is a small-to-medium object, so inches is the best unit. A banana is about 7–8 inches long.
2. A swimming pool is about 25 meters long.
A standard swimming pool is about 25 meters long. Meters are used for larger distances in the metric system.
3. Your hand from wrist to fingertip is about 6 inches long.
A child's hand from wrist to fingertip is about 6 inches, which is half a foot.
4. A football field is best measured in yards.
A football field is 100 yards long. Yards are the best unit for measuring large distances like sports fields.
5. A crayon is about 9 centimeters long.
A crayon is about 9 centimeters long. Centimeters are a good metric unit for measuring small objects.
6. A shoe is about 10 inches long.
An adult shoe is about 10 inches long. Inches are the best unit for objects of this size.
7. A basketball court is measured in feet.
A basketball court is about 94 feet long. Feet is the standard unit for measuring large indoor spaces.
8. A caterpillar is about 5 centimeters long.
A caterpillar is about 5 centimeters long. Centimeters are the right unit for small creatures.
9. We use a ruler to measure the length of small objects.
A ruler is the best tool for measuring small objects. It shows inches on one side and centimeters on the other.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Length of a ladybug
→ 1 centimeter
feet
Length of a baseball bat
→ inches
inches
Length of a room
→ feet
miles
Length of a highway
→ miles
1 centimeter
A ladybug is tiny, about 1 centimeter. A baseball bat is measured in inches. A room is measured in feet. A highway is very long, measured in miles.