Mathorio
Answer key
Introduction to Sales Tax
Show your work for each problem.
- 1.What is sales tax?
- a)A percentage added to the price that goes to the government
- b)A fee for returning items
- c)A discount on products
- d)The original price of an item
Answer: A percentage added to the price that goes to the government
Sales tax is a percentage of the purchase price that is collected by the government. It's added to the cost of goods and services.
- 2.Convert 8% to a decimal.
Answer: 0.08
To convert a percentage to a decimal, divide by 100:
- 3.A pencil costs 2 dollars. With a 10% tax rate, what is the tax amount?
Answer: 0.20
Tax = Price Rate = dollars
- 4.If an item costs 50 dollars and the tax is 5 dollars, what is the total cost?
- a)55 dollars
- b)60 dollars
- c)45 dollars
- d)50 dollars
Answer: 55 dollars
Total = Price + Tax = dollars
- 5.A notebook costs 10 dollars. The tax rate is 5%. Find the total cost.
Answer: 10.50
- Convert 5% to a decimal 0.05
- Calculate the tax: 0.50
- Calculate total: 10.50
- 6.What multiplier do you use to find the total price when the tax rate is 6%?
Answer: 1.06
Multiplier = . Multiply the price by 1.06 to get the total.
- 7.A skateboard costs 75 dollars. With an 8% tax rate, find the total price using the one-step method.
Answer: 81
- Convert 8% to a decimal 0.08
- Find the multiplier: 1.08
- Calculate total: 81
- 8.A shirt costs 40 dollars. With a 7% tax, what is the tax amount?
- a)2.80 dollars
- b)28.00 dollars
- c)7.00 dollars
- d)4.00 dollars
Answer: 2.80 dollars
Tax = dollars. Don't confuse 7% (the rate) with the actual dollar amount.
- 9.A video game costs 60 dollars. The tax rate is 9%. What is the total cost?
Answer: 65.40
Tax = . Total = dollars. Or: dollars.
- 10.You buy a backpack for 55 dollars and the tax rate is 6%. How much do you pay in total?
Answer: 58.30
- Calculate the tax: 3.30
- Calculate total: 58.30
- 11.Which calculation correctly finds the total cost of a 25 dollar item with 4% tax?
- a)
- b)
- c)
- d)
Answer:
is correct. Option B only calculates the tax, not the total. Options A and D incorrectly add 4 or 0.04 directly.
- 12.A pair of sneakers costs 120 dollars. With a 7.5% tax rate, what is the total cost?
Answer: 129
- Convert 7.5% to a decimal 0.075
- Calculate tax: 9
- Calculate total: 129
- 13.A tablet costs 350 dollars with 8.25% tax. What is the total price?
Answer: 378.88
Total = , which rounds to 378.88 dollars.
- 14.You buy three items: a book for 15 dollars, a toy for 25 dollars, and a game for 45 dollars. If the tax rate is 6%, what is the total cost for all items?
Answer: 90.10
- Calculate the subtotal: 85
- Calculate the tax: 5.10
- Calculate the total: 90.10
- 15.Store A sells a jacket for 80 dollars with 5% tax. Store B sells the same jacket for 75 dollars with 10% tax. Which store has a lower total price?
- a)Store B (82.50 dollars)
- b)They cost the same
- c)Store A (84 dollars)
- d)Cannot be determined
Answer: Store B (82.50 dollars)
Store A: . Store B: . Store B is cheaper by 1.50 dollars despite having a higher tax rate!
- 16.A family dinner costs 95 dollars before tax. The tax rate is 8% and they also want to leave a 15% tip on the pre-tax amount. What is the total bill?
Answer: 116.85
- Calculate the tax: 7.60
- Calculate the tip: 14.25
- Calculate total: 116.85
- 17.You have 100 dollars to spend. If the tax rate is 10%, what is the maximum price before tax that you can afford?
Answer: 90.91
If Price 1.10 = 100, then Price = 100 / 1.10 = 90.91 dollars (rounded). This is working backwards from the total.