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Grade 6 · Maths · Lessons
How much for just one?
🍇grapes🚲bike hire🥜almonds1️⃣one
How much for one?
The big ideaDivide down to 1 to find the rate for 1. Then multiply to use it.

How it works

Divide down to 1 to find the rate for 1. Then multiply to use it.

21 dollars for 3 kilograms is 21 ÷ 3 = 7 dollars for 1 kilogram.

Then 4 kilograms cost 4 × 7 = 28 dollars.

21 dollars for3 kgDivide by 37 dollars for 1kgMultiply forany amount
A unit rate.

Example 1: Grapes

  1. Mia pays 21 dollars for 3 kilograms of grapes. How much is that for just 1 kilogram?
  2. 21 dollars for 3 kilograms.
  3. 21 ÷ 3 = 7.
  4. So the answer is 7.

Example 2: Bike hire

  1. Leo pays 21 dollars for 7 hours of bike rental. How much is that for just 1 hour?
  2. 21 dollars for 7 hours.
  3. 21 ÷ 7 = 3.
  4. So the answer is 3.00.

Example 3: Almonds

  1. Ava pays 58 dollars for 10 pounds of almonds. How much is that for just 1 pound?
  2. 58 dollars for 10 pounds.
  3. 58 ÷ 10 = 5.8.
  4. So the answer is 5.80.

Words to know

unit rate
The rate for just one.
per
For each one.

Watch out

Try it

  1. Leo hikes 36 kilometers in 6 hours. How far does Leo go in just 1 hour?
  2. Leo bikes 34 miles in 4 hours. At that speed, how far in 6 hours?
  3. Leo bikes 15 miles in 5 hours. How far does Leo go in just 1 hour?
Answers: 1. 6.00 · 2. 51.00 · 3. 3.00
For grown-upsCompare the price per ounce of two sizes of cereal in a shop.
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