math

+

100

12+73

85

200

45+32

77

300

32+64

96

400

67+87

154

500

287+138

425

-

100

8-7

1

200

24-12

12

300

46-24

22

400

78-42

36

500

476-287

189

X

100

3x4

12

200

5x7

35

300

3x8

24

400

4x9

36

500

5x32

160

/

100

10/2

5

200

12/4

3

300

18/3

6

400

36/4

9

500

7542/2

3771

<

100

2.4    2.3 witch one is greater

2.4

200

6.874       6.863   witch one is greater

6.874

300

9.35624.   9.35862

witch one is greater 

9.35862

400

witch one is greater 4.65          4.91

4.91

500

witch one is greater 

15.2386.       15.2387

15.2387