26 times 64 is 1664, but what is the answer if both 26 and 64 are negative numbers? Here we will determine if the answer to negative 26 times negative 64 is positive 1664 or negative 1664.
There are many different ways to explain and determine if the answer to negative 26 times negative 64 is -1664 or +1664 using mathematical terms such as additive inverse and mathematical laws like the Distribute Law.
We will take a different approach - process of elimination: We will simply test if -1664 is the correct answer using basic algebra.
We will test if -1664 is correct by setting up the equation negative 26 times negative 64 equals negative 1664, and then simplifying the equation to see if it is true.
(-26) (-64) = (-1664)
Divide both sides of the equation by (-64) :
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| = |
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The numerator and denominator on the left side both have (-64) which even each other out and can be removed:
| (-26) = |
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The numerator and denominator on the right side both have a minus sign (-) which even each other out and can be removed:
| (-26) = |
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A numerator of 1664 and denominator of 64 on the right side is the same as 1664 divided by 64 which is 26. Now we end up with this untrue equation:
(-26) = (26)
-26 is NOT equal to 26, thus we have proven that negative 26 times negative 64 is not equal to -1664. The answer must therefore be 1664:
-26 x -64 = 1664
The above applies to all math problems where you multiply two negative numbers. Multiplying two negative numbers such as negative 26 times negative 64 will always have a positive answer.
Negative Times Negative Calculator
Here you can multiply another two negative numbers together.
What is negative 26 times negative 65?
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