Show:
Addition
Subtraction
Addition With Regrouping
Subtraction With Regrouping
Surprise!
100

173 + 23=

196

100

98-18=

80

100

296+370=

666

100

65 - 39 = 

26

100

100 + 56 =

156

200

254 + 25=

279

200

187-42=

145

200
511+396=
907
200

565 - 56 = 

509

200

580+219=

799

300

421+54=

475

300

297-63=

234

300
393+371=
764
300

125 - 116 = 

9

300

456 - 322=

134

400

546+140=

686

400

479-156=

323

400
674+190=
864
400

328-258=

70

400

599 - 88 = 

511

500

614 + 133

747

500

677-134=

534

500
754+197=
951
500

565 - 356 = 

209

500

900 - 250 =

650