The traditional “times” symbol can often be confused for the variable x. So as we get more into Algebra, we’ll stop using the times symbol and will instead use the dot and parentheses symbols to indicate multiplication.
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When you have multiple functions, you can use some simple rules to find their sum, difference, product, or quotient.
Read MoreHere are two quick ways to multiply 9 by any number 1 through 10.
Read MoreThis is a quick trick for finding the square of two-digit numbers.
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