Topic 11- Subtracting 3-Digit Numbers

Subtract 10 or 100

100

426 - 10 =

416

200

345 - 100 =

245

300

287 - 100 =

187

400

309 - 10 =

299

500

140 - 100 = 

40

Count Back on a Number Line

100

449 - 217 = 

232

200

903 - 678 =

225

300

213 - 108 =

105

400

587 - 123 =

464

500

740 - 490 =

250

Count On on a Number Line

100

692 - 221 =

471

200

396 - 256 =

140

300

463 - 264 =

199

400

610 - 380 =

230

500

392 - 128 =

264

Draw a Model

100

598 - 319 =

279

200

794 - 452 =

342

300

871 - 355 =

516

400

485 - 136 =

349

500

326 - 143 = 

183

Pick a Strategy

100

363 - 127 =

236

200

546 - 271 =

275

300

314 - 152 =

162

400

653 - 419 =

234

500

438 - 162 = 

276