Measuring Length — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. A jump rope is 6 feet long. How many inches is that?
A) 60 inches
B) 66 inches
C) 72 inches
D) 78 inches
The correct answer is C) 72 inches. A jump rope is 6 feet long. How many inches is that — the answer is 72 inches.
2. Which object is closest to 1 meter long?
A) A paperclip
B) A baseball bat
C) A school bus
D) A pencil
The correct answer is B) A baseball bat. Which object is closest to 1 meter long — the answer is A baseball bat.
3. Sam has a string 40 cm long. He cuts off 15 cm. How much is left?
A) 20 cm
B) 25 cm
C) 30 cm
D) 35 cm
The correct answer is B) 25 cm. Sam has a string 40 cm long. He cuts off 15 cm. How much is left — the answer is 25 cm.
4. A table is 48 inches long. How many feet is that?
A) 3 feet
B) 4 feet
C) 5 feet
D) 6 feet
The correct answer is B) 4 feet. A table is 48 inches long. How many feet is that — the answer is 4 feet.
Part B: Fill in the Blank
Write the correct answer on each line.
1. A meter stick has 100 centimeters marked on it.
The word centi means one hundredth, so a meter stick is split into 100 equal centimeter marks. That is why 1 meter = 100 cm.
2. A straw is 20 cm. A fork is 18 cm. The straw is 2 cm longer.
Subtract the shorter length from the longer one: 20 cm - 18 cm = 2 cm. The straw beats the fork by 2 centimeters.
3. Three feet equals 36 inches.
One foot has 12 inches, so three feet is 12 × 3 = 36 inches. This is the same as one whole yard.
4. A window is about 3 feet wide.
A window is wider than a ruler but not nearly as wide as a room. Feet is the best unit because 3 feet is about the width of a typical window.
5. A ladybug is about 1 centimeter long.
A ladybug is very tiny. A centimeter is about the width of your little fingernail, which matches the length of a ladybug.