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The partial-products method is a method of multiplication. There are many methods of multiplication, including the traditional method, lattice method, and other ancient methods. The partial-products focuses on the importance of the value of each digit in your factors (remember: factors are the numbers that you multiply together in a multiplication problem).
1. Write out the expanded form of each factor.
2. Multiply each of the numbers from the expanded form from the "bottom" factor times each of the numbers from the expanded form of the "top" factor. Write these mini-multiplication problems in a list.
3. Find the product of each multiplication - finds partial products.
4. Add the partial products.
example:
423 x 6
423 --> 400 + 20 + 3
x 6 --> 6
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6 x 3 = 18
6 x 20 = 120
6 x 400 = 2400
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