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Consumer Math

Consumer Math. Always do your best!! . What operation do you use?. Of means??? X. Taking the percent of a number. Step 1: Change the percent into a decimal. Step 2: Multiply the original number by the percent (as a decimal). Example: What is 15% of 30?. More Practice.

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Consumer Math

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  1. Consumer Math Always do your best!! 

  2. What operation do you use? Of means??? X

  3. Taking the percent of a number. • Step 1: Change the percent into a decimal. • Step 2: Multiply the original number by the percent (as a decimal). Example: What is 15% of 30?

  4. More Practice • What is 25% of 40? • What is 62% of 95?

  5. Your turn! • What is 16% of 34? • 16 C) 54.4 B) 5.44 D) 34

  6. Sort the following words: mark up, tip, percent off, discount, mark downs, sale price, tax Addition Subtraction

  7. How to find discounts, mark downs, sale prices and percent off. • Step 1: change the percent into a decimal. • Step 2: multiply the dollar amount by the decimal. • Step 3: take the answer from step 2 and subtract it from the original price.

  8. Example 20% discount on $45.00 Step 1: Step 2: Step 3:

  9. Another example. • Megan wants to buy a mirror for her room that is originally priced at $85.00, but is on sale for 40% off. What is the sale price of the mirror?

  10. Your turn • What is $34.00 discounted by 15%? A) $28.90 C) $15.00 B) $ 5.10 D) $30.00

  11. Let’s Try • Alex wanted to buy a new video game the originally costs $59.99. The video game is currently on sale for 35% off. How much money would Alex need to buy the game? • $42 C) $20.99 • $39 D) $2096.5

  12. What about increases like tax, tip, mark ups? • Step 1: change the percent into a decimal. • Step 2: multiply the dollar amount by the decimal. • Step 3: take the answer from step 2 and add it to the original price.

  13. Tip Example Dinner bill: $21.50 with a tip of 15% Tip amount: Total:

  14. Tax Example • $50.00 with a sales tax of 6.25%

  15. Mark Up • A DVD that originally costs $20.00 but is currently marked up by 30%.

  16. Your Turn • How much would your total dinner bill be if you spent $9.00 and left a 20% tip? A) $1.80 C) $8.80 B) $7.20 D) $10.80

  17. Another try • An Xbox 360 Kinect costs about $299.99. How much would an xbox360 Kinect cost with a 6.25% sales tax? • $281.24 C) $112.50 B) $318.74 D) $293.74

  18. Try on your own! • Josh went to the pet store to buy a new pet. The dogs were discounted by 40% from the price of $60, the cats were discounted by 30% from the price of $50, and the rabbits were $38 without any discount. Which pet would be the least expensive for Josh to buy and how much does it cost?

  19. Homework • Real World Math Worksheet! SHOW ALL WORK!!!!!!  SHOW ALL WORK!!!!!!  SHOW ALL WORK!!!!!!  SHOW ALL WORK!!!!!!  SHOW ALL WORK!!!!!! 

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