Show:
Addition
subtraction
multiplication
mixed
100

524+243=?

767

100

567-345=

222

100

12x3=

36

100

789-180=

169

200

225+330=

555

200

786-345=

441

200

9x11=

99

200

560+314=

874

300

670+240=

910

300

240-109=

131

300

12x5=

60

300

6x8=

48

400

452+367=

819

400

435-156=

279

400

9x7=

63

400

987-103=

884

500

980+875=

1855

500
978-567=

411

500

9x9=

81

500

12x12=

144