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 stretching or shrinking a quantity by a factor—scaling up or down from the original.
Multiplying by 2 doubles something; by 0.5 cuts it in half; by 3 triples it.
Example 1
easyA recipe uses 3 cups of flour. If you make the recipe 4 times bigger, how many cups of flour do you need?
Example 2
mediumA 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
easyA plant is 8 inches tall. After one month it is 2 times taller. How tall is it now?
Example 4
mediumA photo is 4 inches wide. A poster version is 6 times wider. How wide is the poster?