What is the total cost for 4 pounds of cheese at $2.43 per pound?

What is the total cost for 4 pounds of cheese at $2.43 per pound?

• A. $9.50
• B. $9.72
• C. $9.99
• D. $10.00

Answer: (B)

Total cost comes from multiplying the price per pound by the number of pounds. Here, 2.43 dollars per pound times 4 pounds equals 9.72 dollars. You can see this by adding 2.43 four times or doing long multiplication: 4 × 3 = 12 (write 2, carry 1); 4 × 4 = 16 plus 1 = 17 (write 7, carry 1); 4 × 2 = 8 plus 1 = 9, giving 9.72. Since the price has two decimal places, the total also uses two decimals. The result is $9.72.

Total cost comes from multiplying the price per pound by the number of pounds. Here, 2.43 dollars per pound times 4 pounds equals 9.72 dollars. You can see this by adding 2.43 four times or doing long multiplication: 4 × 3 = 12 (write 2, carry 1); 4 × 4 = 16 plus 1 = 17 (write 7, carry 1); 4 × 2 = 8 plus 1 = 9, giving 9.72. Since the price has two decimal places, the total also uses two decimals. The result is $9.72.