Measuring Lengths — Answer Key
Part A: Multiple Choice
Circle the letter of the best answer.
1. A toy train is 7 cubes long. A toy boat is 3 cubes longer than the train. How long is the toy boat?
A) 3 cubes
B) 4 cubes
C) 7 cubes
D) 10 cubes
The toy boat is 3 cubes longer than the 7-cube train: 7 + 3 = 10 cubes.
2. Which of these is NOT true? A belt is 12 inches. A scarf is 9 inches. A tie is 11 inches.
A) The belt is the longest.
B) The scarf is shorter than the tie.
C) The tie is longer than the belt.
D) The belt is 3 inches longer than the scarf.
The tie is 11 inches and the belt is 12 inches, so the tie is shorter, not longer. This statement is NOT true.
3. Lily has 3 paper clips. Each paper clip is 2 inches long. She lines them up end to end. How long is the line?
A) 3 inches
B) 5 inches
C) 6 inches
D) 8 inches
3 paper clips x 2 inches each = 6 inches when lined up end to end.
4. Four crayons are 5 inches, 2 inches, 8 inches, and 4 inches. Which list shows them in order from shortest to longest?
A) 5, 2, 8, 4
B) 8, 5, 4, 2
C) 2, 4, 5, 8
D) 4, 5, 2, 8
Ordering from smallest to largest: 2 < 4 < 5 < 8, so the correct order is 2, 4, 5, 8.
Part B: Fill in the Missing Measurement
Write the missing number on each line.
1. A jump rope is 5 hands longer than a belt. The belt is 6 hands long. The jump rope is 11 hands long.
The jump rope is 5 hands longer than the 6-hand belt: 6 + 5 = 11 hands.
2. Three worms are 4 inches, 7 inches, and 10 inches long. The difference between the longest and the middle worm is 3 inches.
The longest is 10 inches and the middle is 7 inches. 10 - 7 = 3 inches.
3. A bat is 11 inches long. A ball is 5 inches shorter than the bat. The ball is 6 inches long.
The ball is 5 inches shorter than the 11-inch bat: 11 - 5 = 6 inches.
4. A desk is 4 cubes long. Each cube is 3 inches long. The desk is 12 inches long.
4 cubes x 3 inches each = 12 inches.
5. Put these in order from shortest to longest: 9 inches, 3 inches, 6 inches, 12 inches. The missing number is 6.
In order from shortest to longest: 3, 6, 9, 12. The missing number between 3 and 9 is 6.