Idea 1of 23
The price for one is the unit price
How much does one item cost when you buy a pack?
Today you'll discover
- what a unit price is
- how to find the price for one
- how to check it by multiplying
Think first4 juice boxes for $6.00
The pack of 4 juice boxes costs $6.00. What does one juice box cost?
Decide first, then press Next. Look at the price on the tag and the number of boxes.
A pack of 4 juice boxes on a shelf with a yellow tag: $6.00, 4 juice boxes, and an empty box for the price of one. Then a bar under the tag cut into 4 equal parts; then $6.00 ÷ 4 = $1.50, with $1.50 in each part and in the tag's box; then the check 4 × $1.50 = $6.00. The last step asks about 6 muffins for $7.50.
See the whole ideathe big idea and the key word, in one place
The big idea
The unit price is the price for one: divide the price by how many you get.
Price ÷ how many
Share the price equally among the items. Each share is the unit price. Multiply it back to check.
- Price$6.00
- ÷ boxes÷ 4
- One box$1.50
Where it goes nextUnit prices let you compare packs of different sizes fairly. The next cards find them for grams, litres and services too.
Key words
- unit price
- the price for one item, or for one amount such as 100 g or 1 L
- unit rate
- a rate for exactly 1 of something: $1.50 for 1 box, $12.00 for 1 hour
Ready to use it?
- Find the price for one item from a pack price.
- Check a unit price by multiplying back.