Key takeaway
Move the decimal
Before you read
Test yourself first: 3 questions
Question 1 of 3
If 3 apples cost $1.50, what is the cost of one apple?
Answer: B. Unit price = $1.50 ÷ 3 = $0.50 per apple.
Question 2 of 3
If 5 notebooks cost $10, how much does one notebook cost?
Answer: B. Unit price = $10 ÷ 5 = $2 per notebook.
Question 3 of 3
If 8 pens cost $6, how much do 20 pens cost at the same rate?
Answer: B. Unit price = $6 ÷ 8 = $0.75 per pen; 20 × $0.75 = $15.
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