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Missing Factors

Grade 3 · Building confidence · 14 questions · Version PG-1S3HCL1-NLI8

Four children and a teacher collaborate with blocks, patterns, and a notebook.
1.

18 x __ = 126

2.

38 x __ = 304

3.

104 x __ = 832

4.

90 x __ = 630

5.

21 x __ = 210

6.

85 x __ = 170

7.

62 x __ = 372

8.

117 x __ = 1170

9.

76 x __ = 456

10.

21 x __ = 105

11.

56 x __ = 672

12.

42 x __ = 294

13.

35 x __ = 420

14.

31 x __ = 93

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 2
  1. 18 x __ = 1267
  2. 38 x __ = 3048
  3. 104 x __ = 8328
  4. 90 x __ = 6307
  5. 21 x __ = 21010
  6. 85 x __ = 1702
  7. 62 x __ = 3726
  8. 117 x __ = 117010
  9. 76 x __ = 4566
  10. 21 x __ = 1055
  11. 56 x __ = 67212
  12. 42 x __ = 2947
  13. 35 x __ = 42012
  14. 31 x __ = 933

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.