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Bake Sale Brownies: Cutting Unit Squares worksheet preview

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Bake Sale Brownies: Cutting Unit Squares

Grade 3 area worksheet: brownie bake sale problems show that a unit square with 1-unit sides covers exactly 1 square unit.

Grade 3MathInteractive · Printable

Aligned to3.MD.C.5.a

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What’s included

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

Details

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

About this worksheet

What students practice

  • Students explain that a square with 1-unit sides is a unit square that covers 1 square unit of area.
  • Students tell unit squares apart from smaller pieces and from bigger squares that are not unit squares.
  • Students use 1-inch unit squares to find areas in square inches.

How to use

Use after introducing unit squares. Cut out a paper square with 1-inch sides so students can hold it up to the pieces in each problem.

Curriculum

Common Core standard covered

3.MD.C.5.a

Understand that a unit square covers one square unit of area.

Preview

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Name Date

Bake Sale Brownies: Cutting Unit Squares

See how one unit square covers one square unit of area.

One piece, one square inch

A unit square is a square with sides that are 1 unit long. It covers 1 square unit of area. A brownie piece with 1-inch sides is a unit square, so it covers 1 square inch.

1.
Mr. Okafor cuts a pan of brownies into pieces that are all the same size. The shaded piece is a square with 1-inch sides.1 in1 in

How many square inches does the shaded piece cover?   square inch
How many pieces are in the whole pan?   pieces
What is the area of the whole pan?   square inches

2.
Why is the shaded brownie piece in problem 1 a unit square?
  • A. It is the smallest piece in the pan.
  • B. It is shaded dark.
  • C. It is a square, and each side is 1 inch long.
  • D. It has 4 corners.
3.
Mr. Okafor cuts one 1-inch piece into 3 thin strips that are all the same size. The shaded part is one strip.11How much area does one thin strip cover?
  • A. 1 square inch
  • B. 3 square inches
  • C. less than 1 square inch
  • D. more than 1 square inch

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