Increase and Decrease
Interest
Tip & Tax
Discounts & Mark-Ups
Everything!
100
Original: 1000

New: 1200

20% INCREASE

100

Maria invests $500 in a savings account that earns 6% simple interest per year. She keeps it there for 3 years. How much interest does she earn?

$90 Interest

100

A meal costs $40. You leave a 15% TIP. How much is the tip?

$6 Tip

100

A jacket costs $80 and is on 25% discount. What is the discount amount?

$20 Discount

100

A new Brawler costs 500 gems, but the shop increases the price by 20% during a special event. What is the new price?

600 Gems

200

Original: 250
New: 300

20% INCREASE

200

A bank lends $1200 to a customer at 4% simple interest per year for 5 years. How much interest will the customer pay?

$240 Interest

200

A shirt costs $25. The sales tax is 8%. How much  money do you pay in total?

$27

200

A pair of shoes costs $60 and is discounted by 10%. What is the sale price?

$54

200

A Mythic Brawler normally costs 350 gems, but is on a 15% discount. What is the sale price?

297.5 Gems

300

Original: 750
New: 615

18% DECREASE

300

What is the formula for SIMPLE Interest?

I = Prt

300

A restaurant bill is $60. You leave a 20% TIP. What is the tip amount?

$12 Tip

300

A store buys a backpack for $50 and marks it up by 40%. What is the selling price?

$70

300

A Gadget costs 1000 coins, but the shop increases the price by 10% due to high demand. What is the new price?

1100 Coins

400

Original: 900
New: 1503

67% INCREASE

400

A student saves $1500 in an account earning 3% simple interest per year for 4 years. How much interest is earned?

$180 Interest

400

A video game costs $50. The sales tax is 6%. How much tax is paid?

$3 Tax

400

A phone case costs $15 and is marked up by 30%. What is the new price?

$19.50

400

A Star Power costs 2000 coins, but there is a 25% discount event. What is the sale price?

1500 Coins

500

Original: 1440
New: 1120

22% DECREASE

500

A business borrows $2500 at 5% simple interest per year for 6 years. How much interest will they owe?

$750 Interest

500

A haircut costs $30. You leave a 18% tip. How much is the tip?

$5.40 Tip

500

A game costs $120 and is on 50% discount. What is the sale price?

$60

500

In Brawl Stars, during a Power Point Rush event, you normally earn 1200 Power Points. The event gives a 10% bonus Power Points.

How many Power Points do you earn in total, and how many more do you need to unlock Edgar Buffie (One ONLY), which costs 2000 Power Points?

You get 1320 Power Points and still need 680 Power Points for Edgar Buffies.

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