Everyday Math Skills Workbooks series - Kitchen Math

20
Shopping for the Kitchen
Kitchen 20 Math Workbook
Shopping for the Kitchen
Buying Fresh Produce #9
Division of decimals, multiplication of decimals, rounding off decimals to the nearest cent and
metric conversion
In the produce section of your store, fruits and vegetables are often priced both in
kilograms and pounds. You will need to convert kilograms to pounds and pounds to
kilograms in this exercise.
Remember: 1 kilogram (kg) = 2.2 pounds (lb)
Example 1: Bananas cost $.89/lb.
Problem 1: How much would it cost for 5 lbs of bananas?
Solution 1: 5 x $.89 = $4.45 per 5 lbs of bananas
Problem 2: And how much would it cost for 5 kg?
Solution 2: We first must convert the cost of the bananas to kilograms.
$.89 x 2.2 = $1.96 (rounded off to nearest cent)
$1.96 x 5 = $9.80 It will cost $9.80 for 5 kilograms of bananas.
Example 2: Oranges cost $3.89/kg.
Problem 1: How much would it cost for 3 kg of oranges?
Solution 1: 3 x $3.89 kg = $11.67 for 3 kg of oranges.
Problem 2: And how much would it cost for 3 lbs of oranges?
Solution 2: We first must convert the cost of the oranges to pounds.
$3.89 ÷ 2.2 = $1.77(rounded off to nearest cent)
$1.77 x 3 = $5.31 It will cost $5.31 for 3 lbs of oranges.
Kitchen Math Workbook