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Missing Factors

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

1.

77 x __ = 616

2.

489 x __ = 2445

3.

130 x __ = 780

4.

336 x __ = 1344

5.

456 x __ = 2736

6.

106 x __ = 1166

7.

123 x __ = 1230

8.

268 x __ = 2948

9.

490 x __ = 4900

10.

311 x __ = 3421

11.

182 x __ = 910

12.

351 x __ = 3159

13.

272 x __ = 3264

14.

454 x __ = 4086

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 3
  1. 77 x __ = 6168
  2. 489 x __ = 24455
  3. 130 x __ = 7806
  4. 336 x __ = 13444
  5. 456 x __ = 27366
  6. 106 x __ = 116611
  7. 123 x __ = 123010
  8. 268 x __ = 294811
  9. 490 x __ = 490010
  10. 311 x __ = 342111
  11. 182 x __ = 9105
  12. 351 x __ = 31599
  13. 272 x __ = 326412
  14. 454 x __ = 40869

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.