Unit Conversions
Rates
Percentages
100

The width of what finger is about a centimeter?

Pinky Finger

100

It takes Hallie and Abby 6 minutes to run 8 laps. 


How many laps per minute is that?

4/3 or 1 1/3 laps per minute

If it takes 6 minutes to run 8 laps, it takes 3 minutes to run 4 laps. Therefore, it takes Hallie and Abby 1 minute to run 1 1/3 of a lap.

100

Reagan, Lilianna, and Evie have completed 40% of their trip. They have traveled 50 miles. How long is the whole trip?

If 40% is 50 miles, then 20% is 25 miles.


20 x 5 = 100% so

25 x 5 = 125 miles total in their trip. 

200

How many inches are in a foot?

12 inches = 1 foot

200

It takes Ana and Rylan ALSO 6 minutes to run 8 laps. 


How many minutes per lap is that?

It takes them 3/4 of a minute or 45 seconds to travel 1 lap.

200

There are 24 pieces of candy in a bowl. 18 of them are Reeses (Ms. Markelon's favorite!). What percent of the candy bowl is Reeses?

75%

300

Ellie and Dylan ran 4 miles. How many feet did they run?


Hint: There are 5,280 feet in 1 mile.

5,280 x 4= 21,120 


21,120 feet 

*half points if no included unit

300

It took 5 hours for Jackie and Cris to travel 250 miles. How long does it take them to travel 100 miles?

5 hours per 250 miles =

1 hour = 50 miles, so...50 x 2 = 100, so 1 hour x 2 = 2 hours


Jackie and Cris travel 100 miles in 2 hours.

300

There is a fruit salad bowl with 30 pieces of fruit in it. If 9 pieces are apples, what percent of the fruit bowl is NOT apples? 

70% is not apples

400

Which weighs more: a pumpkin that weighs 7.5 kilograms, or a cat that weighs 13 pounds?

Show your work and explain your reasoning.   

Note: 1 pound is about 0.45 kilograms. 

The pumpkin that weighs 7.5 kilograms is more.

13lbs x 0.45kg = 5.85kg which is less than 7.5.

400

If Luke swims 28 laps at a rate of 0.5 laps per minute, how long does it take him to complete 14 laps?

28 minutes


0.5 laps x 2 = 1 whole lap, so 28 x 2 = 56 minutes for 28 laps.

14 is half of 28, so half of 56 is 28 minutes for 14 laps.

400

There are 28 students in a class and 20 take the bus. What percentage of students take the bus?

a) 23%

b) 50%

c) 0.70%

d) 71%

d) 71%

500

Lea and Aubrey are biking toward each other. They are 18 miles away when they start. Lea runs at a speed of 4 miles per hour and Aubrey walks at a speed of 2 miles per hour.


How long does it take for Lea and Aubrey to meet?

It takes 3 hours for Lea and Aubrey to meet.


Possible explanation:

Each hour they are moving a total distance of 6 miles. 6 x 3 =18 miles, so it takes 3 hours.
500

Ethan, Lily, and Alex are traveling by sea on a vacation. Their cruise ship travels 1,400 miles. It took them 25 days on this long excursion. What is the speed of the ship?

1,400 miles divided by 25 days = 56 miles per day. The rate of the boat is 56 miles per day. 

500

Calder, Jimmy, and Cataleya were also going on a trip. Their whole trip is 240 miles. How many miles is 80% of their trip?

240 = 100% so

120 = 50%

24 = 10% so

10% x 8 = 80%

24 x8 = 192 miles.

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