Simple Interest
What is the formula to calculate simple interest?
I = PRT
What is 35% expressed as a decimal?
0.35
Sarah sold a car and earned a 5% commission. If the selling price of the car was $15,000, how much commission did she earn?
$750
If there is a coupon, discount, percent(%) off, or a sale, what operation do you use to find the total sale price?
Subtraction
If there is a tax, tip, mark-up, or increase, what operation do you use to find the total sale price?
Addition
If you deposit $500 into a savings account that earns 3% interest per year, how much interest will you earn after 2 years?
$30
If you scored 80 out of 100 on a test, what percentage did you score?
80%
If Lisa's commission rate is 8% and she sold $10,000 worth of products, how much commission did she earn?
$800
If a jacket is originally priced at $80 and is on sale for 20% off, what is the discount?
$16 discount
If the sales tax rate if 8% and you purchase an item for $25, what is the amount of the tax you would pay?
$2.00
If you borrow $1,000 from a friend and agree to pay 5% interest per month, how much interest will you owe after 6 months?
$25
Tommy can make 62% of the shots he makes. If he attempted 60 shots, about how many did he make?
About 37 basketball shots.
Mike earns a 12% commission on every product he sells. If he sold $55,000 worth of product last week, how much commission did he earn?
$6,600
A store is having a sale where all items are 30% off. If you purchase a shirt that is originally priced at $25, how much will you pay after the discount?
$17.50
If the total bill at a restaurant is $50 and you want to leave a 15% tip, how much will the bill be?
$57.50
If you invest $1,500 into a savings account that earns 4% interest per year, how much will you have in the account after 5 years?
$1800
For every 50 students in school, 28 play a sport. What percent of the students at school play a sport?
56%
Emma makes $8,000 a month plus some money from commission rates. She gets 5% of everything she sells. If she sold $40,500 worth of items this month, what is her salary for the month?
$10,025
An item is priced at $120 and there is a 15% discount. There is also a 7% tax rate. What is the final sale price after the discount and tax?
Discount: $18
New total: $102
Tax on new total: $7.14
Final total: $109.14
If a meal cost is $75.89 and you want to leave a 20% and the sales tax is 6%, what is the total cost including tip and tax?
Tip: $15.18
Tax: $4.55
Final Total: $95.62
Tammy borrows $7,000 for 4 years at 12.5% interest rate to make home repairs and improvements. How much will she have to pay back, including interest?
$10,500
If a shirt costs $20 and is on sale for 25% off, what is the sale price?
$15
Thomas has two part time jobs. His first job is selling cars. He makes 6% commission on cars he sells. His second job is selling products. He makes 12% commission on every product he sells.
If he sold a car worth $22,000 and sold $6,000 worth of products, what is the total commissions he made from both jobs?
Car sells: $1320
Products sold: $720
Total commissions: $2,040
Your parents bought a new piece of furniture. It originally cost $198.95. It was on sale for 12% off. The sales tax rate is 6.5%. What is the total cost of the furniture?
Discount: $23.87
New total: $175.08
Tax: $11.38
Final total: $186.46
You and three friends go out to eat a restaurant and split the total bill evenly. The meal cost $46.88. The sales tax is 5% and a 20% tip is left. How much should each person pay?
Tip: $9.38
Tax: $2.34
Total before split: $58.60
Each person pays $14.65