Adding and Subtracting
Multiplying
Dividing
Greatest Common Factor
Least Common Multiple
100

23.1 + 78.05

101.15

100

36 x 0.42

15.12

100

759 -: 0.3

2,530

100

What is the GCF of 28 and 21?

7

100

For the following numbers, what is the least common multiple:

20 and 10

20

200

56.08 - 45.07

11.01

200

6.04 x 23

138.92

200

17.696 -: 2.8

6.32

200

What is the GCF of 19 and 38?

19

200

For the following numbers, what is the least common multiple:


12 and 2

12

300

1,046.376 - 821.613

224.763

300

10.21 x 2.01

20.5221

300

202.0 -: .5

404

300

What is the GCF of 200 and 25?

25

300

For the following numbers, what is the least common multiple:

5 and 8


40

400

.61 + 4.1 + 8 + 10 + .9 + 10

33.61

400

0.94 x 89.1

83.754

400

77.5 -: 3.1

25

400

What is the GCF of 44 and 86?

2

400

For the following numbers, what is the least common multiple:

3 and 9

18

500

5.948 - 3.080

2.868

500

7.2 x 10.6

76.32

500

102.48 -: 1.4

73.2

500

What is the GCF of 6, 24, and 42?

6

500

For the following numbers, what is the least common multiple:

4, 7, and 14

28

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