Show:
addition
subtraction
multiplication
division
roman numerals
100

300+300

600

100

500-300

200

100

10x9

90

100

100/2

50

100

x

10

200

309+310

619

200

100-60

40

200

202x2

404

200

1004/2

502

200

cm

900

300

321+ 329

650

300

370-280

90

300

45x6

230

300

67/5

a13 r2

300

cmix

909

400

430+ 200

630

400

477-388

89

400

123x9

1107

400

701/8

a87 r5

400

mmcmv

2909

500

4001+4509

8510

500

711-699

12

500

612x8

4896

500

751/8

a93 r7

500

m

1000