Total Cost

To calculate the total cost of a purchase, get the cost of one item. This is called the unit price. Multiply the unit price by the quantity of that item. Do the same thing with each type of item, and add all of the results together.
For example, an apple costs $1.00, an orange costs $1.50, and a candy bar costs $2.00. You are buying 2 apples, 3 oranges, and 5 candy bars. To calculate the total cost, do the following: 
apples     = $1.00 × 2 =  $2.00
oranges    = $1.50 × 3 =  $4.50
candy bars = $2.00 × 5 = $10.00
total cost             = $16.50
Unit price can also refer to the cost of one unit of measurement for an item. Fruits are often priced per pound instead of per fruit. For example, bananas cost $0.50 per pound. You are buying 6 bananas that weigh a total of 2 pounds. To calculate the total cost, do the following: 
total cost = $0.50 × 2 = $1.00

Exercise 1 of 6

A book costs $12.50. What is the cost of 3 books? You can open a new tab and type a calculation in the address bar. Use * to multiply.

Exercise 2 of 6

A table costs $48.25, and a chair costs $14.50. You are buying 2 tables and 4 chairs. What is the total cost?

Exercise 3 of 6

A plate costs $3.00, a bowl costs $3.50, and a cup costs $2.75. You are buying 5 plates, 5 bowls, and 3 cups. What is the total cost?

Exercise 4 of 6

Watermelons cost $0.32 per pound. You are buying a watermelon that weighs 19.5 pounds. How much is the watermelon?

Exercise 5 of 6

A candy bar costs $2.00, but a pack of 12 candy bars costs $21.50. How much would you save if you bought a pack versus each bar individually? Calculate the cost of 12 candy bars individually, and take the difference.

Exercise 6 of 6

A fruit stand sells peaches for $1.00 each. A grocery store sells peaches for $2.50 per pound. You are buying 9 peaches that weigh a total of 3 pounds. How much would you save if you made this purchase at the grocery store versus at the fruit stand?

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