Addition (no Regrouping)
Subtraction (no Regrouping)
Addition (with Regrouping)
Subtraction (with Regrouping)
Subtracting (over zeros)
100

123 + 204

327

100

450 - 123

327

100

486 + 127

613

100

502 - 187

315

100

200 - 136

64

200

215 + 334

549

200

692 - 241

451

200

379 + 256 

635

200

631 - 248

383

200

400 - 256

144

300

142 + 356

498

300

534 - 212

322

300

267 + 197

465

300

704 - 389

315

300

500 - 159

341

400

301 + 402

703

400

897 - 353

544

400

594 + 318

912

400

820 - 467

353

400

700 - 482

218

500

250 + 340

930

500

760 - 410

350

500

487 + 529

1,016

500

903 - 578

325

500

900 - 428

472

M
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