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Explain how you can use the rules of multiplying a positive number by a negative

number to check that your answer has the correct sign.

Answer in at least 2 complete sentences

Answer :

A multiplication is a basic mathematical operation that involves the addition of a given number to zero in a number of specified times. Multiplication of two numbers is also known as the product of the numbers

The correct response is as follows;

In a multiplication calculation, an even number of negative numbers give a positive number. If the number of negative numbers in the multiplication calculation is odd, the resulting number will be negative

Reason:

The rules for multiplication of a positive numbers given the signs of the numbers are;

The multiplication of two numbers having the same sign is a positive number

(Negative number) × (Negative number) = Positive number

(Positive number) × (Positive number) = Positive number

The product of two numbers having different sign is a negative number

(Positive number) × (Negative number) = Negative number

Therefore;

The product of a set numbers having an odd number count of negative numbers (or an odd sum of the exponents of the negative numbers) give a negative number. If the count of the negative numbers is even, the answer will be positive

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