Linear Algebra For Dummies
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In math, distribution (also called the distributive property of multiplication over addition) allows you to split a large multiplication problem into two smaller ones and add the results to get the answer.

If you’ve ever tried to carry a heavy bag of groceries, you may have found that distributing the contents into two smaller bags is helpful. This is similar to how the distributive property works for multiplication.

Here’s an example: multiply 17 101 using the distributive property.

  1. 1. Simplify the numbers.

    In this example, 101 = 100 + 1, so:

    17 101 = 17 (100 + 1)

  2. Split the problem into two easier problems.

    Take the number outside the parentheses, and multiply it by each number inside the parentheses, one at a time.

    = (17 100) + (17 1)

  3. 3. Add the products.

    At this point, you may be able to solve the two multiplications in your head and then add them up easily:

    = 1,700 + 17

    = 1,717

About This Article

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Mary Jane Sterling taught algebra, business calculus, geometry, and finite mathematics at Bradley University in Peoria, Illinois, for more than 30 years. She is the author of several For Dummies books, including Algebra Workbook For Dummies, Algebra II For Dummies, and Algebra II Workbook For Dummies.

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