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Solve.

PACKAGING A cereal box that is shaped like a rectangular prism has a length of 5 centimeters, a width of 4 centimeters, and a height of 10 centimeters. What is its volume?

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Understand Read the problem. Write what you know.

A cereal box has a length of 5 centimeters, a width of 4 centimeters, and a height of 10 centimeters.

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Plan Pick a strategy. One strategy is to use a model.

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Solve Use unit blocks to build the rectangular prism. Count the number of blocks used.

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Check The length is 5 centimeters.The width is 4 centimeters.There are 10 layers.

Multiply, then add.

5 4 = 20

20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 = 200

The volume of the rectangular prism is 200 cubic centimeters.