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Solving problems involving discounts at sales and sales tax.

Solving problems involving discounts at sales and sales tax. CCSS:. Number Sense 1.4 Calculate given percentages of quantities and solve problems involving discounts at sales, interest earned, and tips.

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Solving problems involving discounts at sales and sales tax.

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  1. Solving problems involving discounts at sales and sales tax.

  2. CCSS: • Number Sense 1.4 Calculate given percentages of quantities and solve problems involving discounts at sales, interest earned, and tips. • Objective: Students will find the discount and sale price of an item and find the tax and total price of an item after taxes.

  3. How to find the sales tax! • First find out what tax rate you will be paying. • In Michgan, the tax rate is 6%! • Convert your percentage to a decimal by moving your decimal two spaces to the left. Ex. 6% =0.06 (Don’t forget to add a zero) • Multiply the decimal form of the tax rate by the price of the item you are purchasing. Ex. 0.06 x $ cost of the item

  4. How to find the sales tax! • So if an item costs $5.00 • Sales tax is6% • Convert 6% to 0.06 • So.06 x $5 = $0.30 • The sales tax is $0.30 • But the total price of the item is $5.00 + $0.30 =$5.30

  5. How to find the Discount & Discounted Price • Find out the % of the discount. Convert the % to a decimal. • Multiply the decimal by the original price. • Take the answer in step 2 and subtract it from the original price. Example • Discount 20% = .20, • $10 x .20 = $2.00 • $10.00 - $2.00 = $8.00

  6. Please randomly add all of these numbers to your BINGO sheet of paper. • $71.20 • $17.80 • $53.04 • $4.04 • $47.70 • $2.70 • $10.60 • $.60 • $50.00 • 149.99 • $162.36 • $9.20 • $239.19 • $.74 • $158.99 • $189.99

  7. The object of the game: • Solve each math problem from the PPT. • Cross out the answer on the bingo card. • The first three students with four in a row win!

  8. Hollister Shirt $10The tax is 6% • 1. How much would you spend on taxes for this shirt? • $.60 • 2. What would be the total cost of this shirt? • $10.60

  9. $45.00 iPod shuffle 1GBtax rate = 6% 3. What will the sales tax be if you purchase this item? $2.70 4. What will the total price be if you purchase this item? $47.70

  10. E-matic 4GB Video MP3 Player with 2.4" Screen, Camera and Video Recorder $49.00 Tax rate 8.25% • 5. What will be the total of the state sales tax? • $4.04 • 6. What will be the total price of the MP3 Player after the state tax of 8.25% is applied? • $53.04

  11. If this NdamukongSuh Jersey was 20% off, 7. What would the discount be? 8. What would be the sale price? $17.80 $71.20 NdamukongSuh Jersey $89

  12. Xbox 360 for $199.99 • The Discount is 25% • 9. What is the discount amount? • $ 50.00 • 10. What is the price after the discount? • $149.99 • 11. What is the price after the discount and after taxes? • $158.99

  13. Ipod Touch for $229.99 • The tax rate is 4% • 12. What is the tax? • $ 9.20 • 13. What is the total price after taxes? • $239.19

  14. WINNERS??? • Class Activity: Discount Bingo • Try thisShopping at Troy’s Toys Interactive • Then complete IXL Practice • Homework Time!!! • HW: Discounts and Sales Tax Handout

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