Perimeter Missing Side
Grade 3 Math Worksheet - Challenge Me
Write the answer on the line, or circle the answer.
The class needs 64 feet of border paper to go all the way around the reading corner. Three sides are 11 feet, 24 feet and 11 feet. How long is the fourth side, in feet?
The perimeter is 67 feet. Three sides are 18 feet, 14 feet and 14 feet. Which expression finds the missing side?
- 67 - 18
- 18 + 14 + 14
- 67 - (18 + 14 + 14)
- 67 + (18 + 14 + 14)
The perimeter is 50 cm. Three sides are 8 cm, 21 cm and 8 cm. How long is the missing side, in cm?
A rectangle has a perimeter of 32 m. Each long side is 12 m. How long is each short side, in m?
The perimeter is 50 inches. Three sides are 11 inches, 15 inches and 11 inches. How long is the missing side, in inches?
The perimeter is 66 feet. Three sides are 20 feet, 12 feet and 12 feet. Which expression finds the missing side?
- 66 - (20 + 12 + 12)
- 66 - 20
- 66 + (20 + 12 + 12)
- 20 + 12 + 12
Grandma uses 71 inches of lace to go all the way around a four-sided cloth. Three sides are 12 inches, 27 inches and 12 inches. How long is the fourth side, in inches?
The perimeter is 64 m. Three sides are 18 m, 10 m and 10 m. How long is the missing side, in m?
A rectangle has a perimeter of 56 inches. Each short side is 12 inches. How long is each long side, in inches?
The perimeter is 58 feet. Three sides are 14 feet, 12 feet and 12 feet. Which expression finds the missing side?
- 58 - 14
- 58 - (14 + 12 + 12)
- 58 + (14 + 12 + 12)
- 14 + 12 + 12