Practice Multiplication as Scaling in Math

Use these practice problems to test your method after reviewing the concept explanation and worked examples.

Quick Recap

Understanding multiplication as resizing or scaling a quantity by a factor. Multiplying by 2 doubles, by 0.5 halves, and by 1 leaves unchanged — it stretches or shrinks the original number.

Multiplying by 2 doubles something; by 0.5 cuts it in half; by 3 triples it.

Example 1

easy
A recipe uses 3 cups of flour. If you make the recipe 4 times bigger, how many cups of flour do you need?

Example 2

medium
A drawing of a cat is 5 cm tall. You scale it up to be 3 times taller. How tall is the scaled drawing?

Example 3

easy
A plant is 8 inches tall. After one month it is 2 times taller. How tall is it now?

Example 4

medium
A photo is 4 inches wide. A poster version is 6 times wider. How wide is the poster?
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