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Find the Missing Side

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Find the Missing Side

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How long is the missing side? Use this worksheet to get your child acquainted with the concept of perimeter. They'll combine their addition and subtraction skills with their new geometry learning to find the length of each missing side.

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Third Grade

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3.MD.D.8

Mathematics Grade 3 3.7.B Grade 4 4.5.C

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Mathematics Key Stage 2 Year 4 3.1.1 Key Stage 2 Year 5 3.1.1

Numeracy and Mathematics Second NMM.8.3

Mathematics Key Stage 2 Year 4 M.2 Key Stage 2 Year 5 M.3

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Third Grade Math Worksheets: Find the Missing Side

Guided Lesson: Multiplication 1

Guided Lessons are a sequence of interactive digital games, worksheets, and other activities that guide learners through different concepts and skills. They keep track of your progress and help you study smarter, step by step.

Guided Lessons are digital games and exercises that keep track of your progress and help you study smarter, step by step.

Third grade is the year of multiplication. Though it was most likely introduced to kids in second grade, third grade is when kids are tasked with mastering their times tables and developing a stronger understanding of this key operation. This guided lesson in understanding multiplication can help give third graders a leg up. For even more practice, consider downloading the recommended multiplication worksheets that accompany the lesson.

Third grade is the year of multiplication.

This lesson includes printable activities: Download all (5)

Game: Skip Counting at the Zoo

Exercise: One-Digit Multiplication and Equal Groups

Exercise: Multiplication and Repeated Addition

Exercise: One-Digit Multiplication with Skip-Counting

Game: Candy Shop Arrays

Exercise: One-Digit Multiplication and Arrays

Exercise: One-Digit Multiplication and the Commutative Property

Exercise: One-Digit Multiplication Using a Number Line

Game: Pool Creation: Area Models

Exercise: One-Digit Multiplication with Area Models

Exercise: Relating Area to Addition and Multiplication

Exercise: Multiply by 1

Exercise: Multiply by 2

Exercise: Multiply by 10

Start Guided Lesson

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Find the Missing Side

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Guided Lesson: Multiplication 1

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