Lesson 1: Percentages

Percentages

"At Best Buy they have a 42" TV that sells for $1250.00 and is on sale for 15%. The sales tax is 6%. What is the final cost?"

• 1250 x .15 = 187.50 1250 - 187.50 = 1062.50

• 1062.50 x 1.06 = 1126.25

Multiple Choice

At Best Buy they have a 42" TV that sells for $1250.00 and is on sale for 15%. The sales tax is 6%. What is the final cost?

• $1128.26

• $1026.05

• $1126.25

• $1234.76

Evan bought a pair of shoes for $120. There was a discount on the shoes for 10% off and the tax was 5%. What is the total price?

• 120 x .10 = 12.00 120 - 12 = 108

• 108 x 1.05 = 113.40

Multiple Choice

Evan bought a pair of shoes for $120. There was a discount on the shoes for 10% off and the tax was 5%. What is the total price?

• $105.46

• $113.40

• $108.00

• $109.36

A Chicago Cubs baseball cap costs $30. Michael has a coupon that will save him 30% of the price. How much money will Michael pay for the cap?

• 30 x .30 = 9.00 OR 30 x .7 = 21

• 30 - 9 = 21

Multiple Choice

A Chicago Cubs baseball cap costs $30.  Michael has a coupon that will save him 30% of the  price. How much money will Michael pay for the cap?

• $9.00
• $22.00
• $21.36
• $21.00

200 children attended the school play. Of the total attendance, 40% were boys. How many girls attended the school play?

• 200 x .40 = 80

• 200 - 80 = 120

• OR 200 x .60(since 60% of the population were girls) = 120

Multiple Choice

200 children attended the school play. Of the total attendance, 40% were boys. How many girls attended the school play?

• 800
• 180
• 80
• 120

Sarah earns $20 a day working after school. She spent 30% of her daily earnings on Monday. How much money did she spend on Monday?

• 20 x .30 = $6

• 
  

• 
  

Multiple Choice

Sarah earns $20 a day working after school. She spent 30% of her daily earnings on Monday. How much money did she spend on Monday?

• $1.40
• $6
• $0.60
• $14

A clothes shop is holding a 20% sale during the month of January. Gina wants to buy a new pair of jeans which used to cost $18. How much is she going to pay now?

• 18 x .80(because if you subtract 20% from 100% you have 80% left to pay)

• $14.40

Multiple Choice

A clothes shop is holding a 20% sale during the month of January. Gina wants to buy a new pair of jeans which used to cost $18. How much is she going to pay now?

• $14.40

• $15.00

• $10.00

• $12.20

At a sport club 40% prefer football, 30% basketball and the rest volleyball. 300 children attend this sport club. Find the number of those who prefer volleyball.

• If 40% prefer football and 30% basketball that would leave 30% preferring volleyball(100 - 40 - 30 = 30)

• 300 x .30 = 90

Multiple Choice

At a sport club 40% prefer football, 30% basketball and the rest volleyball. 300 children attend this sport club. Find the number of those who prefer volleyball.

• 70

• 80

• 90

• 100

At a birthday party 40% of the children had an ice-cream. 150 children attended the party. How many had an ice-cream?

• 150 x .40 = 60

• 
  

Multiple Choice

At a birthday party 40% of the children had an ice-cream. 150 children attended the party. How many had an ice-cream?

• 60

• 70

• 80

• 90

What is 50% of 730?

• 730 x .50 = 365

Multiple Choice

What is 50% of 730?

• 356

• 635

• 365

• 536

What is 25% of 500

• 500 x .25 = 125

Multiple Choice

What is 25% of 500

• 100

• 125

• 225

• 250

What is 10% of 730?

• 730 x .10 = 73

Multiple Choice

What is 10% of 730?

• 73

• 7300

• 350

• 735

Convert ³/₄ to percent

• 3/4 = x/100

• 300/4 =75

• 75%

Multiple Choice

Convert ³/₄ to percent

• 75%

• 25%

• 50%

• 100%

Convert 73% to a decimal

• 73% move the decimal point 2 spaces to the LEFT. (REMEMBER if you don't see a decimal point, it is at the end of the number)

• .73

• 
  

Multiple Choice

Convert 73% to a decimal

• 73.0

• 0.37

• 0.73

• 0.7