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Brownie Bake Shop: Count the Squares, Then Multiply worksheet preview

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Brownie Bake Shop: Count the Squares, Then Multiply

Grade 3 area practice: tile brownie pans with 1-inch squares, count them, and see that the count matches the side lengths multiplied.

Grade 3MathInteractive · Printable

Aligned to3.MD.C.7.a

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What’s included

  • Single worksheet
  • Auto-graded online
  • 1 Common Core standard
  • Printable answer key
  • 10 questions
  • Classroom-ready

Details

Format
Interactive · Printable
Grade
Grade 3
Subject
Math
Question types
Fill in the blank, Multiple choice, Matching, Circle the answer, Sorting, Short answer, Drawing

About this worksheet

What students practice

  • Students find the area of a rectangle by counting the unit squares that tile it.
  • Students show that the number of tiles equals the product of the side lengths.
  • Students explain why multiplying side lengths gives the same area as counting tiles.

How to use

Use after students know what a square unit is. Let them tally the squares in the first pans, then check each count with a multiplication equation.

Curriculum

Common Core standard covered

3.MD.C.7.a

Find the area of a rectangle by tiling it and show it equals multiplying the side lengths.

Preview

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Name Date

Brownie Bake Shop: Count the Squares, Then Multiply

Cut brownie pans into 1-inch squares and see why multiplying the sides gives the area.

Count the brownie squares

Each small square is one brownie piece. Each piece covers 1 square inch.

1.
Kiara cuts a pan of brownies into 1-inch squares.
5 in3 in

Rows of pieces:  
Pieces in each row:  
Area of the pan:   square inches

2.
Grandma Rosa bakes a bigger pan.
6 in5 in
Kiara counts the pieces one by one. Amir multiplies the side lengths.

Kiara counts   pieces.
Amir writes 6 × 5 =  .

3.
Which equation tells how many 1-inch pieces are in this pan?
7 in4 in
  • A. 4 + 7 = 11
  • B. 4 × 6 = 24
  • C. 4 × 7 = 28
  • D. 7 + 7 + 4 + 4 = 22

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