Addition
Addition
Addition
Subtraction
Subtraction
100

20+20

40

100

16+42

58

100

78+20

108

100

95-30

65

100

46-21

25

200

40+36

76

200

67+13

80

200

24+44

68

200

67-44

23

200

81-24

57

300

80+19

99

300

86+111

197

300

140+35

175

300

240-130

110

300

987-125

862

400

135+125

270

400

416+212

628

400

513+336

849

400

672-246

426

400

745-389

356

500

200+87

287

500

417+289

706

500

372+386

758

500

800-456

344

500

600-291

309