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(−2) × (+5) = −10. Example: (−4) × (−3) The signs are − and − (they are both negative signs), so they are like signs (like each other) So the result must be positive: (−4) × (−3) = +12. Why does multiplying two negative numbers make a positive? Well, first there is the "common sense" explanation: When I say "Eat!"
if it is 1 dived by -100 then you take 1 divide it by onehundred and get -0.001. If you are multiplying 1 times -100 then you take 1 times -100, set this up so that would be -100 because there is still a negitive sign.
- Why are multiplying and dividing negatives the same?Multiplying and dividing negatives are the same because there is no difference between those sides of zero except the side of zero. So, when you mu...
- why do people use . ( dot symbol) instead of x. if x is used common in algebra why did they put x in...X is a simpler way of teaching kids. Little kids might think they’re smarter than they really are and think that it’s a decimal point. As you get o...
- am i the only chinese people on this websiteBad grammar though, it's suppose to be "Am I the only Chinese on this website?"The answer is no, I am also a Chinese.
- Why does the negative cancel out in *neg / neg* and *neg * neg*?Because you are adding to it's self making a positive, with integers you always do the inverse operation well let me not say always for certain ope...
- Why do we need letter in math? I know why we need fractions but why letter. Why cant it give us a pr...They're called "variables".
- Hey guys. Is a positive+Positive+Negative and Negative or Positive?Depends. if positive + positive is more than the negative it positive ex. 6+4+-5=5 if positive + positive is less than the negative the answer is n...
And different signs gets you a negative result. So that would be either, let's say a 1 times 1 is equal to 1, or if I said negative 1 times negative 1 is equal to positive 1 as well. Or if I said 1 times negative 1 is equal to negative 1, or negative 1 times 1 is equal to negative 1.
- 9 min
- Sal Khan
- who decided to have negative x negative= positiveWell it is a positive because when you multiply decimals that are negative they can cancel each other out. I hope that answers your question :)
- What are the rules for adding, subtracting, multiplying and dividing negative numbers with positive ...Addition: + + + = +. - + - = -. for equations with different signs the number with the higher absolute value take the sign of the answer. Subtracti...
- so a negative + negative = negative?negative+negative= positive
- How would you solve a problem like this: Multiply the sum of -6 and -5 by -8. Please show all your w...If you solve -6*-5 first in the equation, it becomes easier to solve: 6*5=30, and because we have two negatives the answer is positive. When we mul...
- so how does 2 negitives = positive. Because i get too cofused when people tell meits like addition and division
- what are transitive property and commutative property?The transitive property can be described by the statement, "If a = b and b = c, then a = c." The commutative property can be described by the state...
Now lets take to the really un-intuitive one and measure negative times a negative, and all of a sudden negatives kind of cancel to give you a positive. Now why is that the case? Well we can just build from this example right over here.
- 6 min
- Sal Khan
Therefore we have 3 × ( − 1) = − 3, 3 × ( − 2) = − 6, and likewise a negative for any other other positive times a negative. Second, to establish that a negative times a negative is positive: we now know that 3 × ( − 2) = − 6, 2 × ( − 2) = − 4, 1 × ( − 2) = − 2, 0 × ( − 2) = 0.
Then the rules for multiplying with negatives are: plus times plus is a plus. (firing the burner causes the balloon to rise) minus times plus is a minus. (turning the burner off causes the balloon to sink) plus times minus is a minus. (adding sand bags causes the balloon to sink) minus times minus is a plus.
−1. In mathematics, −1 ( negative one or minus one) is the additive inverse of 1, that is, the number that when added to 1 gives the additive identity element, 0. It is the negative integer greater than negative two (−2) and less than 0 . Algebraic properties. Multiplication.
