Comparing Lengths — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Tom's pencil is 6 cubes. Mia's is 8 cubes. How many cubes shorter is Tom's?
A) 2 cubes
B) 14 cubes
C) 8 cubes
D) 6 cubes
Eight minus six equals two so Tom's pencil is two cubes shorter.
2. A snake is 15 clips. It hides 10 clips under a rock. How many clips show?
A) 10 clips
B) 5 clips
C) 15 clips
D) 25 clips
Fifteen minus ten leaves five clips of snake still showing outside.
3. Three ribbons are 4 cubes each. Total length together?
A) 4 cubes
B) 7 cubes
C) 12 cubes
D) 3 cubes
Four plus four plus four equals twelve cubes when ribbons line up.
4. A worm grew from 3 cubes to 9 cubes. By how many cubes did it grow?
A) 3 cubes
B) 9 cubes
C) 12 cubes
D) 6 cubes
Nine minus three equals six so the worm grew six cubes total length.
Part B: Fill in the Blank
Write the correct answer on each line.
1. If two strings are 7 and 4 cubes, the longer is 3 cubes more.
Seven minus four equals three so the longer string beats by three.
2. A 20-cube rope split into four equal parts makes each part 5 cubes.
Sharing twenty cubes into four equal parts gives each part five cubes.
3. Adding a 3-cube piece to a 6-cube stick makes it 9 cubes.
Three more cubes on top of six gives a total of nine cubes.
4. If A is 5 cubes and B is also 5 cubes, they are equal in length.
Matching cube counts mean the two objects are equal in total length.
5. A 14-clip belt minus a 6-clip cut leaves 8 clips remaining.
Fourteen minus six equals eight clips left over after the cut.