Mathematics Grade 7 15 min

Unit prices: find the total price

Unit prices: find the total price

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Introduction & Learning Objectives

Learning Objectives Define unit price and total price in the context of consumer math. Identify the unit price and quantity from a given problem statement. Calculate the total price of multiple items when the unit price is known. Apply the formula Total Price = Unit Price × Quantity to solve real-world problems. Solve multi-step problems that involve finding the total price. Demonstrate an understanding of how unit prices impact overall spending. Ever wondered how much you'd pay for 8 delicious cookies 🍪 if each one costs $1.25? Or how stores calculate your bill? In this lesson, you'll learn how to quickly and accurately find the total cost of multiple items when you know the price of a single item. This skill is essential for smart shopping, budgeting, and under...
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Key Concepts & Vocabulary

TermDefinitionExample Unit PriceThe cost of one single item or one unit of a product.If a candy bar costs $1.50, then $1.50 is the unit price. Total PriceThe overall cost for a specific quantity of items.If you buy 3 candy bars at $1.50 each, the total price is $4.50. QuantityThe number of items or units being purchased.In '3 candy bars,' the quantity is 3. ProductThe result obtained when two or more numbers are multiplied. In this context, the total price is the product of the unit price and quantity.$1.50 (unit price) × 3 (quantity) = $4.50 (product/total price). Consumer MathPractical mathematics used in everyday financial situations, like shopping, budgeting, and calculating costs.Calculating the total cost of groceries is an application of consumer math. CostThe amount of m...
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Core Formulas

Total Price Formula (Verbal) `\text{Total Price} = \text{Unit Price} \times \text{Quantity}` This formula is used to calculate the total amount of money needed to purchase a certain number of items when you know the price of just one item. Total Price Formula (Symbolic) `C = P \times N` This is a symbolic representation where C represents the Total Cost, P represents the Unit Price, and N represents the Number of Items (Quantity). It's a concise way to write the total price calculation.

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Sample Practice Questions

Challenging
You need to buy 30 pencils. The store sells them in 5-packs for $2.50 or 10-packs for $4.50. What is the lowest possible total price for 30 pencils?
A.$15.00
B.$13.50
C.$14.00
D.$12.50
Challenging
A video game has a unit price of $25.00. What is the total price for 4 copies of the game if there is a 10% sales tax on the entire purchase?
A.$110.00
B.$100.00
C.$102.50
D.$125.00
Challenging
A ticket to a concert costs $4.25. Which equation represents the total price (C) for purchasing 'n' tickets?
A.= 4.25 + n
B.n = 4.25 × C
C.= 4.25 ÷ n
D.= 4.25 × n

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