math

add

100

10+51=

61

200

200+70=

270

300

1000+3000=

4000

400

10020+30020=

40040

500

100000+200001

300001

subtract

100

10-10=

0

200

100-21=

79

300

10000-1000

9000

400

100-99=

1

500

500-500

0

times

300

12x12

144

500

100x100=

1000

division

200

10/2=

5

factorial

100

2!

2x1=2

200

3!

3x2x1=9

300

4!

4x3x2x1=24

400

5!

5x4x3x2x1=120

500

6!

6x5x4x3x2x1=720