PencilGoPencilGo

Missing Factors

Grade 3 · Stretch challenge · 14 questions · Version PG-16UJN73-7PG0

1.

487 x __ = 5844

2.

416 x __ = 2080

3.

238 x __ = 1904

4.

380 x __ = 3800

5.

225 x __ = 900

6.

275 x __ = 825

7.

256 x __ = 1536

8.

489 x __ = 4401

9.

267 x __ = 2403

10.

446 x __ = 1338

11.

241 x __ = 2651

12.

384 x __ = 1152

13.

499 x __ = 4990

14.

356 x __ = 3204

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 17
  1. 487 x __ = 584412
  2. 416 x __ = 20805
  3. 238 x __ = 19048
  4. 380 x __ = 380010
  5. 225 x __ = 9004
  6. 275 x __ = 8253
  7. 256 x __ = 15366
  8. 489 x __ = 44019
  9. 267 x __ = 24039
  10. 446 x __ = 13383
  11. 241 x __ = 265111
  12. 384 x __ = 11523
  13. 499 x __ = 499010
  14. 356 x __ = 32049

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.