Mystery
unit rates
ratios
PEMDAS
mean, mean, mode IQR
100

x + 10= 30

what is x 

20

100

A car travels 180 miles in 3 hours.
Find the unit rate in miles per hour

60 mph

100

If the ratio of boys to girls in a class is 3:4 and there are 12 boys, how many girls are there?

16

100

8+3×2

14

100

Find the mean 

4, 8, 6, 10

7

200

CLT stands for

Combining like terms

200

You pay $12 for 4 pounds of apples.
What is the cost per pound?

$3 per pound

200

A recipe calls for 2 cups of sugar for every 5 cups of flour. If you use 10 cups of flour, how many cups of sugar do you need?


4 cups of sugar

200

(8+3)×2

22

200

Find the mode of:
2, 5, 7, 5, 9, 2, 5

5

300

anything to the power of 0 is

1

300

A student reads 45 pages in 5 days.
How many pages does the student read per day?

9 pages per day

300

The ratio of red marbles to blue marbles is 5:2.
If there are 21 marbles total, how many are red?

15 red marbles

300

24÷4+6×2

18

300

Find the range

10, 14,17, 20, 18, 13, 21

11

400

LCM stands for 

Least common multiple

400

A recipe uses 6 cups of flour to make 24 cookies.
How many cups of flour are used per cookie?

0.25 cups of flour per cookie

400

The ratio of cats to dogs at a shelter is 4:9.
If there are 36 dogs, how many cats are there?

16 cats

400

30−6÷3+4×2

36

400

Find the IQR of:
2, 4, 6, 8, 10, 12, 14

8

500

In order to simplify a ratio you must find both numbers _________ ________ _________

Greatest common factor

500

A runner completes 2.5 miles in 20 minutes.
What is the unit rate in miles per minute?

0.125 miles per min

500

A smoothie recipe uses a ratio of 3 strawberries to 2 bananas. If you use 18 strawberries, how many bananas do you need?

12 bananas

500

(18−6)÷3+22

8

500

Find the mean, median, and mode of:
6, 8, 10, 6, 12, 14

mean: 9.33

mode: 6 

median: 9

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