Unit 3 Review

Unit 3 Review

Let's take a walk through memory lane

Multiple Choice

Percent is always out of

• 10

• 100

• 1000

• 10,000

Multiple Choice

In a bag of skittles there are 24 candies. 6 red, 5 yellow, 4 green, 9 purple. What percentage of the candies are red?

• 25%

• 20%

• 16.67%

• 75%

How do we find percentages?

Let's look back at what we've learned

Percentages are a part of a whole, so we must know the whole amount first, then we turn to division. Your answer will come out to be a decimal. Once you have completed the decimal you will move the decimal 2 places to the right (multiply by 100).

Boom done put a percent sign and it's complete.

Multiple Choice

In a bag of skittles there are 24 candies. 6 red, 5 yellow, 4 green, 9 purple. What percentage of the candies are NOT red?

• 25%

• 20%

• 16.67%

• 75%

Multiple Choice

A jet plane can carry up to 200,000 liters of fuel. It used 130,000 liters of fuel during a flight.

What percentage of the fuel capacity did it use on this flight?

• 60%

• 65%

• 55%

• 0.65%

Fill in the Blanks

7 is what percent of 28?

Fill in the Blanks

Sammi goes to the store buys a shirt for $30 at the checkout using a coupon. The original cost of the shirt was $40 on the tag. What percent was her coupon?

Fill in the Blanks

6 is what percent of 30?

Rates are a unique type of ratio where the relationship remains constant.

Like if one class had 4:5 girls to boys than the entire school would have 4 girls to every 5 bous.

What are rates?

Multiple Choice

It took 4 hours to drive 240 miles. At this rate, how long does it take to drive 90 miles?

• 60 hours

• 6 hours

• $$2\frac{2}{3}$$ hours

• $$1\frac{1}{2}$$ hours

Fill in the Blanks

Jim and Kelly were racing. If Jim could run 1200 meters in 3 minutes and Kelly can run 1.1 kilometers in 2.5 minutes, at this rate how long will it take Jim to run 2 kilometers?

Fill in the Blanks

A conductor is mapping a trip and records the distance the train travels over certain time intervals.

The train travels at a constant speed. What is its speed?

Multiple Choice

Which weighs more: a pumpkin that weighs 3.8 kilograms, or a cat that weighs 9

pounds? Note: 1 pound is about 0.45 kilograms.

• Pumpkin

• Cat

Put your percent over 100 and reduce.

Fractions

Going from percent to decimal you move the decimal 2 places to the left (divide by 100).

Decimals

How to convert percents?

Fill in the Blanks

Write 19% as a fraction.

Fill in the Blanks

Write 0.06 as a percentage.

Fill in the Blanks

Write 1/2 as a percentage.

Fill in the Blanks

Write 1.02 as a percentage.

Fill in the Blanks

Write 5% as a decimal.

Fill in the Blanks

Write 60% as a fraction.

Match

Match the following

• 1/10

• 1/4

• 1/3

• 2/3

• 3/4

10%

25%

33 1/3%

66 2/3%

75%

• 10%

• 25%

• 33 1/3%

• 66 2/3%

• 75%

First convert percent into decimal. Then multiply the decimal to the whole number.

Boom done

​

How to determine a percent of a number?

Multiple Choice

How long is 50% of 60 minutes?

• 30

• 20

• 15

• 180

Multiple Choice

Today, you have a 20% off of the price coupon for Best Buy. If you buy an XBox game that costs $65.00, how much money will you be saving by using your coupon?

• $13.00

• $15.00

• $7.00

• $42.00

Multiple Choice

What is 65% of 80?

• 52

• 123

• 50

• 48

Multiple Choice

It takes Jada 20 minutes to walk to school. It takes Andre 80% as long to walk to school. How long does it take Andre to walk to school?

• 16 minutes

• 14 minutes

• 18 minutes

• 4 minutes

Fill in the Blanks

Only 7% of the 100 kids in junior high will be placed into the accelerated program in high school.  How many junior high students will be placed into this program?

Multiple Choice

There is a jar of jellybeans on Ms. Kane's desk. 40% of the jellybeans are red. If there are 55 jelly beans in the jar, how many are red??

• 20

• 22

• 24

• 25

How do you go back to the original number?

First find the percent you are looking for and convert it to a decimal. Then divide the part by the decimal. Once you have completed your division you are all done back to the whole amount.

Boom Done Like a Boss.

Fill in the Blanks

9 is 20% of what number?

Multiple Choice

Scott’s family has completed 60% of their road trip. They have traveled 72 miles. How many miles is the trip?

• 24

• 120

• 96

• 160

Multiple Choice

Eric earned 60 points on his last test. If he received 80%, what was the max points on the test?

• 75

• 80

• 100

• 60