GCF/LCM
Multiplication
Division
Ratio/Unit Rate
Order of Operations
PEMDAS
100

Greatest Common Factor of 3 & 9.

3

100

7 x 9

63

100

72 / 8

9

100

Find the Unit Rate for 40 minutes/2 hours.

20 minutes per hour.

100

(4 x 1) + 9 =

13

200

GCF (20, 14)

2

200

98 x 8

784

200

7584 / 8

948

200

35 books in 5 boxes?

7 books per box

200

15 - (2 x 5)=

5

300

LCM: 4, 18

36

300

3.75 x 65.7

246.375

300
36.96 / 7

5.28

300

240 students in 8 classes?

30 students per class

300

93 - (2 x 8) =

77

400

GCF: (56, 42, 98)

7

400

274 x 525

143,850

400

553.6 / 32

17.3

400

62 words per minute

How many words in 17 minutes?

1054 words

400

29 - (2 x 5) = 

19

500

LCM: 12, 15

60

500

8.1 x 0.900

7.29

500

4.05 / 9

0.45

500

448 crosswords in 28 puzzle books. How many crosswords per book? 

16 crosswords per book.

500

(13 + 42) x 5 + 2

277

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