Subtraction with Regrouping

2-digit

100

51 - 25 =?

26

200

76 - 38 =?

38

300

62 - 29 =?

33

400

83 - 54 =?

29

500

90 - 61 =?

29

3-digit

100

431 - 225 =?

206

200

617 - 384 =?

233

300

382 - 194 =?

188

400

743 - 478 =?

265

500

915 - 439 =?

476

3-digit with zero

100

640 - 227 =?

413

200

307 - 185 =?

122

300

705 - 298 =?

407

400

900 - 360 =?

540

500

500 - 268 =?

232