3.MD.D.8 math practice. Learn by doing.

3.MD.D.8 practice covers solve real world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths. Work through 8 free questions with answers and explanations, then continue in the related math games.

Grade 31 mapped skills
What it covers

Skills aligned to 3.MD.D.8

Perimeter

Grade 336 questions
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8 free questions · 0/0 correct

Practice playeasy

Perimeter of a 44 ft by 77 ft rectangle?

2(4+7)=222(4+7)=22 ft.

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A square has side 88 m. Perimeter?

4×8=324 \times 8 = 32 m.

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Perimeter of a 1010 cm by 33 cm rectangle?

2(10+3)=262(10+3)=26 cm.

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A square has sides of 22 ft. What is its perimeter?

4×2=84 \times 2 = 8.

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What is the perimeter of a 33 cm by 22 cm rectangle?

2(3+2)=2×5=102(3 + 2) = 2 \times 5 = 10.

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A square has sides of 33 in. What is its perimeter?

4×3=124 \times 3 = 12.

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What is the perimeter of a 44 m by 33 m rectangle?

2(4+3)=2×7=142(4 + 3) = 2 \times 7 = 14.

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A square has sides of 44 cm. What is its perimeter?

4×4=164 \times 4 = 16.

Keep playing

Practice 3.MD.D.8 inside a game.

The placement test chooses the right difficulty while every match keeps the standard in play.

Balloon Pop Math game coverBalloon Pop MathPlay →Beam Team game coverBeam TeamPlay →Blaster Gate game coverBlaster GatePlay →Blitz Tanks game coverBlitz TanksPlay →
Tests that assess these skills:
ACT AspireSBACSC READYStar MathVTCAP
Test reporting domains
STAAR Grade 3: Geometry and MeasurementMAP Growth Math 2-5: Measurement and DataSBAC Grade 3: Concepts and ProceduresACT Aspire All grades: Preparing for Higher MathAK STAR Grades 3-5: Measurement & DataCMAS Grades 3-5: Measurement & Data
Nearby standards
3.MD.C.73.NBT.A.1All Common Core standards