Grade 3 · Math · Challenge
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 · Stretch challenge · 14 questions · Version PG-18IH9CX-7PG0
1.
45 x __ = 180
2.
161 x __ = 1288
3.
92 x __ = 1012
4.
161 x __ = 805
5.
234 x __ = 1404
6.
430 x __ = 3010
7.
298 x __ = 1192
8.
431 x __ = 862
9.
382 x __ = 2292
10.
321 x __ = 1284
11.
149 x __ = 298
12.
401 x __ = 4010
13.
14 x __ = 70
14.
128 x __ = 768
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
- 45 x __ = 1804
- 161 x __ = 12888
- 92 x __ = 101211
- 161 x __ = 8055
- 234 x __ = 14046
- 430 x __ = 30107
- 298 x __ = 11924
- 431 x __ = 8622
- 382 x __ = 22926
- 321 x __ = 12844
- 149 x __ = 2982
- 401 x __ = 401010
- 14 x __ = 705
- 128 x __ = 7686
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.