

Grade 3 · Math · Building Confidence
Free Missing Factors worksheet - version 19
Find the unknown factor in multiplication equations. This printable version includes 14 grade-appropriate questions and a separate answer sheet.
Missing Factors
Grade 3 · Building confidence · 14 questions · Version PG-1VU66E7-NLI8

1.
31 x __ = 279
2.
29 x __ = 145
3.
84 x __ = 672
4.
115 x __ = 920
5.
33 x __ = 132
6.
77 x __ = 693
7.
47 x __ = 423
8.
45 x __ = 315
9.
88 x __ = 440
10.
74 x __ = 814
11.
57 x __ = 456
12.
58 x __ = 290
13.
63 x __ = 567
14.
79 x __ = 948
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 19
- 31 x __ = 2799
- 29 x __ = 1455
- 84 x __ = 6728
- 115 x __ = 9208
- 33 x __ = 1324
- 77 x __ = 6939
- 47 x __ = 4239
- 45 x __ = 3157
- 88 x __ = 4405
- 74 x __ = 81411
- 57 x __ = 4568
- 58 x __ = 2905
- 63 x __ = 5679
- 79 x __ = 94812
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.