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Missing Factors

Grade 3 · Stretch challenge · 14 questions · Version PG-188HNNY-7PG0

1.

247 x __ = 2223

2.

480 x __ = 4320

3.

258 x __ = 3096

4.

285 x __ = 2850

5.

381 x __ = 3429

6.

384 x __ = 2688

7.

328 x __ = 2952

8.

377 x __ = 2262

9.

154 x __ = 616

10.

142 x __ = 1136

11.

11 x __ = 99

12.

60 x __ = 240

13.

274 x __ = 1370

14.

109 x __ = 872

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 18
  1. 247 x __ = 22239
  2. 480 x __ = 43209
  3. 258 x __ = 309612
  4. 285 x __ = 285010
  5. 381 x __ = 34299
  6. 384 x __ = 26887
  7. 328 x __ = 29529
  8. 377 x __ = 22626
  9. 154 x __ = 6164
  10. 142 x __ = 11368
  11. 11 x __ = 999
  12. 60 x __ = 2404
  13. 274 x __ = 13705
  14. 109 x __ = 8728

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.