Free Printable WorksheetMathGrade 3Math CurriculumMATH.3.111

3.111 Missing Side Length from Perimeter Worksheet

Download our free printable Grade 3 Math worksheet on 3.111 Missing Side Length from Perimeter. Ideal for classroom practice, homeschool learning, independent homework, and standardized test preparation. Available in both print-ready PDF and editable DOCX formats.

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 3 Math worksheet provides structured practice on 3.111 Missing Side Length from Perimeter. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Select the missing side length when the perimeter and other side lengths are given. (CCSS 3.MD.D.8)

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Grade 3

Subject

Math

Domain

Math Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 3.111 Missing Side Length from Perimeter skill assessments:

Problem 1Difficulty: Mastery

During review time, a rectangle has a perimeter of 40 in. Each long side is 14 in. What is the length of each short side (in in)?

Solution & Explanation:Subtract the two long sides: 40 − (14 + 14) = 12. Divide by 2 for the two short sides: 12 ÷ 2 = 6. Each short side is 6 in.

Problem 2Difficulty: Mastery

A four-sided floor mat has a perimeter of 34 ft. Three sides measure 7 ft, 8 ft, and 6 ft. What is the length of the fourth side (in ft)?

Solution & Explanation:Add the known sides: 7 + 8 + 6 = 21. Subtract from the perimeter: 34 − 21 = 13. The missing side is 13 ft.

Problem 3Difficulty: Mastery

At the math center, a rectangle has a perimeter of 34 m. Each long side is 10 m. What is the length of each short side (in m)?

Solution & Explanation:Subtract the two long sides: 34 − (10 + 10) = 14. Divide by 2 for the two short sides: 14 ÷ 2 = 7. Each short side is 7 m.

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Frequently Asked Questions

Common questions about printing, using, and solving this worksheet

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QIs this 3.111 Missing Side Length from Perimeter worksheet free for teachers and homeschoolers?

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QCan students practice 3.111 Missing Side Length from Perimeter online with instant feedback?

Yes! In addition to this printable worksheet, students can practice 3.111 Missing Side Length from Perimeter interactively on our platform with automated grading, instant score tracking, and detailed step-by-step solutions.

QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 3 Math students. It aligns with educational standard MATH.3.111 (Grade 3 measurement and data practice focused on missing side length from perimeter.).