Ages 8–9🧮 MathematicsBeing planted

Area (age 8+)

Measure areas by counting unit squares (square cm, square m, square in, square ft)

A first look

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Question 1 of 3

A classroom rug is made of 1‑cm squares. It looks like a 4 cm × 4 cm square but the lower‑right corner that is 2 cm × 2 cm is cut out, leaving an L‑shaped piece. How many square centimetres are in the area of the rug?

Question 2 of 3

A shape is formed by attaching a right triangle to a rectangle. The rectangle is 10 cm long and 5 cm wide. The right triangle shares its 5‑cm leg with the rectangle’s width and has the other leg 6 cm long. What is the area of the combined shape in square centimeters?

Question 3 of 3

The shape is formed by a rectangle that is 8 cm long and 5 cm wide. A right triangle is attached to one of the 8‑cm sides of the rectangle; the triangle’s base is the same 8 cm side and its height is 3 cm. What is the area of the entire shape in square centimeters?

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Skill names and descriptions include the Marble Skill Taxonomy © Generative Spark, Inc. (withmarble.com), licensed under ODbL 1.0 (database) and CC BY-SA 4.0 (content). Practice questions are GlowGrades's own, each checked by independent verifiers that must agree before a child ever sees it.