5.15: Better Buy: Unit Price Extras

Difficulty Level: At Grade Created by: CK-12

Extra for Experts - Better Buy: Unit Price

Which store has the better buy for one box of pencils?

How did you decide?

Which store has the better buy for one notebook?

How did you figure it out?

Which store has the better buy for one box of paperclips?

How did you figure it out?

Which store has the better buy for one box of nails?

How did you figure it out?

Which store has the better buy for one stool?

How did you figure it out?

Which store has the better buy for one hose?

How did you figure it out?

Solutions

1. Sun’s Stationery; $15÷5=$3\begin{align*}\15 \div 5 = \3\end{align*} for one box of pencils at Sun’s Stationery, and $10÷2=$5\begin{align*}\10 \div 2 = \5\end{align*} for one box of pencils at Nature’s Notes.
2. Nature’s Notes; $30÷6=$5\begin{align*}\30 \div 6 = \5\end{align*} for one notebook at Nature’s Notes, and $24÷4=$6\begin{align*}\24 \div 4 = \6\end{align*} for one notebook at Sun’s Stationery.
3. Nature’s Notes; $24÷8=$3\begin{align*}\24 \div 8 = \3\end{align*} for one box of paperclips at Nature’s Notes, and $20÷5=$4\begin{align*}\20 \div 5 = \4\end{align*} for one box of paper clips at Sun’s Stationery.
4. Harry’s Hardware; $49÷7=$7\begin{align*}\49 \div 7 = \7\end{align*} for one box of nails at Harry’s Hardware, and $27÷3=$9\begin{align*}\27 \div 3 = \9\end{align*} for one box of nails at HomeMart.
5. HomeMart; $21÷3=$7\begin{align*}\21 \div 3 = \7\end{align*} for one stool at HomeMart, and $16÷2=$8\begin{align*}\16 \div 2 = \8\end{align*} for one step stool at Harry’s Hardware.
6. HomeMart; $64÷8=$8\begin{align*}\64 \div 8 = \8\end{align*} for one hose at HomeMart, and $40÷4=$10\begin{align*}\40 \div 4 = \10\end{align*} for one hose at Harry’s Hardware.

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Date Created:
Feb 23, 2012