3.MD.7d: Recognizing Area as Additive

Practice Worksheet
I can recognize area as additive and find areas of rectilinear figures.

Problem 1

Find the total area of two rectangles: 3×4 and 2×5

Hint: Hint: Find each area, then add them together

Problem 2

A shape is made of a 2×3 rectangle and a 1×4 rectangle. What is the total area?

Hint: Hint: Area = 6 + 4

Problem 3

Add these areas: 8 square units + 5 square units

Hint: Hint: Just add the numbers

Problem 4

Two squares: one 3×3 and one 2×2. Find the combined area

Hint: Hint: 9 + 4 = ?

Problem 5

A figure has three parts with areas 6, 4, and 3. What is the total area?

Hint: Hint: Add all three numbers

Problem 6

Find the total area: Rectangle (4×2) + Rectangle (3×3)

Hint: Hint: 8 + 9 = ?

Problem 7

Two rectangles have areas 12 and 7. What is their combined area?

Hint: Hint: 12 + 7 = ?

Problem 8

A shape is 5×2 rectangle plus 1×6 rectangle. Find total area

Hint: Hint: 10 + 6 = ?

Problem 9

Add these areas: 15 + 8 + 2 square units

Hint: Hint: Add from left to right

Problem 10

Combined area of 3×5 rectangle and 2×4 rectangle

Hint: Hint: 15 + 8 = ?

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