Show:
Addition 1
addition 2
Subtraction 1
Subtraction 2
100

69+61=

130

100

75+51=

126

100

81-16=

65

100

61-34=

27

200

144+88=

56

200

167+51=

228

200

189-120=

69
200

133-65=

68

300

302+176

478

300

309+120=

429

300

392-155=

237

300

270-222=

48

400

443+285=

728

400

516+326=

842

400

864-141=

723

400

991-217=

774

500

1929+1183=

3112

500

1770+896=

2666

500

1746-839=

907

500

1238-788=

450