Examples, solutions, videos, and worksheets to help Grade 4 students learn how to solve multiplication problems with missing factors.
Factors are numbers that can be multiplied together to yield a given number as the result. In other words, factors are the numbers that evenly divide another number without leaving a remainder.
For example, the factors of 12 are 1, 2, 3, 4, 6, and 12, because these numbers can be multiplied together to yield 12:
1 × 12 = 12
2 × 6 = 12
3 × 4 = 12
If you know some factors of a number, you can use division to find the missing factors. Divide the number by each known factor, and if the result is an integer, then the divisor and the quotient are both factors of the original number.
For example, if you know that 2 and 3 are factors of a number, you can divide the number by 2 and 3, and if the results are integers, then the missing factors would be the divisors and the quotients obtained from the divisions.
Have a look at this video if you need to review how to solve multiplication problems with missing factors.
Click on the following worksheet to get a printable pdf document.
Scroll down the page for more Find Missing Factors Worksheets.
Find Missing Factors Worksheet (eg. 12 = 6 x ___)
(Answers on the second page.)
Missing Factor Worksheet
Sheila is not correct. There will be leftovers because 3 is not a factor 28.
Julie is right. There will be no leftovers because 4 is a factor of 32.
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