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What are the multiplication rules?

幫考網校2020-11-26 16:31:08
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1. The product of any number and zero is zero.
2. The product of any number and one is that number.
3. The product of any number and its reciprocal is one.
4. The product of two positive numbers is positive.
5. The product of two negative numbers is positive.
6. The product of a positive and a negative number is negative.
7. The product of any number and itself is called the square of that number.
8. The product of three or more numbers is associative, which means that the order of multiplication does not change the result.
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