geometry
division
multiplication
subtraction
100

is a acute angle more the 90* or less then 90*

less

100

40/23

1.73

100

40 x 64

2560

100

10-9

1

200

is a right angel 90* or 9*

90*

200

800/45

17.777

200

62 x 48

2,976

200

340-45

295

300

is a horizontal line 180* or 108*

180*

300

896/52

17.230

300

39 x 46

1,794

300

354,324-436

353,888

400

is a circle 360* or 306*

360*

400

56/3

14

400

300 x 78

23,400

400

24,345-789

23,556

500

obtuse the same as a right angle

no

500

1564/65

24.061

500

689 x 60

41,340

500

900,000,000-863

8,999,999,127