Numbers

# How do you work out how to times a positive number by a negative number?

345 ###### 2010-02-26 16:19:57

A positive number times a positive number will always get you a positive number

A negative number times a negative number will always get you a positive number

(same signs will get you a positive number)

but

A positive number times a negative number will always get you a negative number

or

A negative number times a positive number will always get you a negative number

(different signs will get you a negative number)

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## Related Questions It does not work that way. A negative power is simply the reciprocal. So that x-a = 1/xa The reciprocal is negative or positive according to whether the number itself is negative or positive. [And, if the number is 0, the reciprocal is not defined.] when work is positive and when playing is negative  No, this will not work. Postitive to Negative/Negative to Positive will work. Pretend the negative number is positivedivide the positive number by a positive numbermake the result negative.For example, divide 12 by -6:Pretend -6 is 6divide 12 by 6 to get 2make the result negative to give -2Thus 12 ÷ -6 = -2  52•(-5)=52•5=260 since a positive number times a negative number equals a negative, the answere is -260 Consider that you have a negative times a positive, so the final result will be negative.Work out 24 x 2/3 and make sure the result is negative.When multiplying numbers, there are 2 different cases to think about with regard to the signs of the numbers:If the signs of the numbers are the same (positive and positive, or negative and negative) then the result will be positive;Otherwise if the signs are different (that is if one number is positive and the other is negative) the result will be negative.  Multiply the integer by -1 this makes the number positive.  Positive to positive, and negative to negative outputs. A Negative plus a positive = a negative because negative and a positive cannot work together Negative + Negative= Positive Positive + Positive = Positive when your dealing with numbers such as : -2 + 2 would equal a negative 4 -2 +-2 would equal a positive 4  Division and multiplication work the same when working with negatives. Both numbers negative = positive Both numbers positive = positive One number negative, and one positive = negative So, 63 divided by 7 equals 9, but one of the numbers, the 7, had a negative sign... so the answer is negative 9 or -9 There are different conventions as to what work is negative and what work is positive. The convention used by engineers and physicists is that work done BY the system on its surroundings is positive while work done ON the system by its surroundings is negative. Chemists reverse these conventions. If work is done on the system then it has a negative sign. If work is done by the system then it has a positive sign. you divide regularly but since both numbers are negatives the answer is positive example -5 divided by -9 equals 45 well first of all if I gave you the answer it would be cheating. but I will show you a better way to do the problem. seven plus two thirds is easy. It is seven and two thirds. now times that by negative one . remember your integer rules. Positive times a positive is equal to positive. negative times positive is negative is but a negative times a negative is a positive. b so seven and two thirds times negative one is negative seven and one thirds. I hope that I could have been of some assistance to your problem. Remember to work the problem one step at a time. If you look at the whole problem you will get confused. look at segments than put it all together. good luck.  If all three numbers are positive then the product obviously has to be positive. If TWO of the three numbers are negative, then the product is also positive. But if exactly ONE of the three numbers is negative or if all THREE are negative, then the product must be negative. In general, a product of numbers is negative if an ODD NUMBER of the terms is negative.  Work done by the system is considered as PositiveWork done on the system is considered as Negative You need to work backwards from the answer of 16. Dividing 16 by 4 gives you 4. The square root of 4 is 2. Your number is 2. Check your answer - 2 squared is 4. 4 times this 4 is 16. It can also be -2 (minus or negative 2) because when you multiply (or square) two negative numbers, the answer becomes a positive number. ###### Math and ArithmeticEnergyMathematical FinanceAlgebraElectrical EngineeringPhysicsNumbers Home & GardenThermodynamics and Statistical MechanicsEntertainment & Arts Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.