Show:
subtracting
multiplication
decimals
division
adding
100

21-12=

9

100

100x4=

400

100

10.2-9.2=

1

100

10/1=

10

100

33+10=

43

200

132-22=

110

200

44x22=

968

200

21.22-10.22=

11

200

44/2=

22

200

111+212=

323

300

2121-122

1999

300

10x4=

40

300

212.22-212.22=

0

300

33/11=

3

300

1212+212122=

213334

400

1233-223=

1010

400

412x21=

8652

400

11.11-10.11=

1

400

434/3=

144.666666667

400

122+122=

244

500

44444-21212=

23232

500

3123x122=

381006

500

1212.21-21.12=

1191.09

500

232/2=

116

500

1212+122=

1224