Surface area of rectangular prisms (boxes) only: SA = 2lw + 2lh + 2wh, asked in different ways: from a picture or a net, one pair of faces, a missing height, comparing two boxes, fixing a mistake and word problems. Edges grow from small whole numbers to decimals.
What the worksheets look like
Easy
Start here: the simplest problems.
Medium
Bigger numbers and more steps.
Hard
The toughest problems and word problems.
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