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Idea 14of 23Builds on3 for $5.00: check the deal

Buy one, get one free

What does buy one, get one free do to the price of each?

Today you'll discover

  • why each costs half
  • the half-price version
  • when it is not a saving

Think first$4.40 a loaf: buy one, get one free

Bread is $4.40 a loaf: buy one, get one free. What does each loaf cost you?

Decide first, then press Next. Count what you pay and how many you take home.

A plain tag, $4.40 for one loaf, beside an orange tag: buy 1, get 1 free. Then two loaves, one marked $4.40 and one marked free, $0.00, with the line 2 loaves: $4.40 + $0.00 = $4.40. Then $8.80 − $4.40 = $4.40 less than 2 at full price, and $4.40 ÷ 2 = $2.20 each, if you use both. The last step asks about a second book at half price.

See the whole ideathe big idea and the key word, in one place

The big idea

Buy one, get one free means 2 for the price of 1: each costs half.

Free, or half price?

Second one free: 2 for $4.40, $2.20 each. Second one half price: 2 for $9.00, $4.50 each on a $6.00 book.

  1. 2nd freehalf off each
  2. 2nd half pricea quarter off each

Easy to get wrongThe deal only works if you buy 2. Buy one loaf, and it still costs $4.40.

Key word

buy one, get one free
a deal where you pay for one item and get a second one for $0.00

Ready to use it?

  • Find the price of each item in a buy-one-get-one deal.
  • Work out a second-item-half-price deal.
Practise this idea