PencilGoPencilGo

Missing Factors

Grade 3 · Stretch challenge · 14 questions · Version PG-1DUQDBQ-7PG0

1.

406 x __ = 4872

2.

455 x __ = 4550

3.

333 x __ = 3996

4.

204 x __ = 2244

5.

466 x __ = 5126

6.

116 x __ = 928

7.

189 x __ = 1323

8.

321 x __ = 1284

9.

45 x __ = 315

10.

222 x __ = 888

11.

308 x __ = 616

12.

304 x __ = 608

13.

270 x __ = 1890

14.

107 x __ = 321

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 5
  1. 406 x __ = 487212
  2. 455 x __ = 455010
  3. 333 x __ = 399612
  4. 204 x __ = 224411
  5. 466 x __ = 512611
  6. 116 x __ = 9288
  7. 189 x __ = 13237
  8. 321 x __ = 12844
  9. 45 x __ = 3157
  10. 222 x __ = 8884
  11. 308 x __ = 6162
  12. 304 x __ = 6082
  13. 270 x __ = 18907
  14. 107 x __ = 3213

Worked example

7 x __ = 42. Since 42 / 7 = 6, the missing factor is 6.

Common mistake

Multiplying the known factor and product together.

Helpful hint

Use the related division fact.