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Cogito

Grade 3 Math · Chapter 4 · Lesson 1

Practice Worksheet

What Area Is

How much space a shape covers.

10 problems · about 12 minutes · 3.MD.C.5, 3.MD.C.6

NameDate

Figure — use these to answer the problems

Count the squares that cover the rectangle.

Area · squares inside

15

Perimeter · walk around

16

Width5
Height3
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

3 problems

  1. From “Two-Step Problems With a Letter”

    8 × 5 − 14 = ?

    Answer

  2. From “Multiplication and Division Fluency”

    7 × 6 = ?

    Answer

  3. From “Patterns in the Times Tables”

    Is 8 × 7 odd or even?

    • Even
    • Odd

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. A rectangle 7 across and 3 down. What is its area?

    Answer

  2. What does area measure?

    • How much space a shape covers.
    • How far it is around the edge.

  3. A rectangle 4 across and 3 down. What is its area?

    Answer

Build It Up

The same ideas with more to keep track of.

1 problem

  1. A rectangle 6 across and 2 down. What is its area?

    Answer

Stretch Yourself

Mixed problems. Work out what kind of question it is before you start.

3 problems

  1. A rectangle 5 across and 5 down. What is its area?

    Answer

  2. The Patio

    A patio is covered by 24 square slabs. What is its area?

    Answersquare units

  3. The Rule

    Can the squares overlap when you measure area?

    • No. They must fit exactly.
    • Yes. Overlapping is fine.