Multiply money amounts: word problems

Key Notes :

1. Understanding Money in Word Problems

• Money amounts are often written in dollars and cents ($ or ¢).
• The decimal point separates the dollars from the cents (e.g., $4.50 means 4 dollars and 50 cents).
• When solving word problems, focus on the units of money (dollars, cents) and ensure consistency in using them throughout the problem.

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2. Key Vocabulary

• Multiply: Find the total amount by adding the same number multiple times.
• Unit price: The price per item (e.g., price of one notebook).
• Total cost: The total amount for multiple items.
• Amount: The quantity or value of money in the problem.

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3. Steps for Solving Word Problems

• Step 1: Read the problem carefully to understand what is being asked.
• Step 2: Identify the money amounts involved and the operation needed (multiplication).
• Step 3: Set up the multiplication equation.
  • For example, if one pencil costs $2.50 and you need 3 pencils, multiply $2.50 by 3:
  2.50×3=7.50
• Step 4: Perform the multiplication, ensuring you correctly handle decimals.
• Step 5: Write the final answer with the correct currency unit (e.g., $).

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4. Example Word Problem 1

• Problem: A book costs $5.75. How much will it cost to buy 4 books?
• Solution: 5.75×4=23.00 So, the total cost for 4 books is $23.00.

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5. Example Word Problem 2

• Problem: A toy costs $8.25. If you buy 6 toys, what is the total cost?
• Solution: 8.25×6=49.50 The total cost for 6 toys is $49.50.

Learn with an example

Let’s practice!🖊️