Quantity Math Example 1
Follow the full solution, then compare it with the other examples linked below.
Example 1
easyA recipe calls for 2 cups of flour. If you want to make 3 batches, how much flour do you need? Identify the quantity and the unit.
Solution
- 1 The quantity per batch is 2 cups. Making 3 batches multiplies the quantity: .
- 2 The unit is 'cups'. The quantity is 6.
- 3 You need 6 cups of flour.
Answer
A quantity has both a number and a unit. When you scale a recipe, you multiply the numerical part while keeping the unit the same. Distinguishing the number from the unit is essential in measurement contexts.
About Quantity
An amount or number of something that can be measured or counted; a quantity combines a number with a unit.
Learn more about Quantity →More Quantity Examples
Example 2 medium
Explain why 'the number of people in a room' is a discrete quantity but 'the temperature of a room'
Example 3 easyA car travels at 60 miles per hour for 2.5 hours. What quantity does [formula] represent?
Example 4 mediumCan you say which is 'more': 5 kilometers or 5 miles? What does this tell you about quantities?