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What is negative 12 times negative 3 times positive 2?
-12 X -3 X (+)2 = --36 X (+)2 (+) 36 X (+)3 = (+)72 The signs are shown for clarity. Remember when multiplying/dividing positive/negative numbers the following table. X + = + X - = - X + = - X - = + NB If no sign is shown read it as positive (+)
What are some negative numbers you use in the real world?
1) Temperature below zero degrees is denoted by a negative number. 2) In business, profit is shown as positive and loss as negative
How do you make a subtraction problem look like an addition?
In most mathematics, it is implied that all numbers are positive. Negative numbers are invariably shown prefixed by a -ve sign. To help clarification, a positive number may occasionally be shown preceded by a +ve sign. The subtraction of a positive number equates to the addition of a negative number. EXAMPLE : 7 - 2 = 5 equates to 7 + (-2) = 5
Why positive displacement are called positive?
Because it has been decided that the right and upwards directions in a plane are the positive directions and the left and downwards are negative. Originally, the decisions were arbitrary but conventionally agreed (in the same sort of way that North is usually shown at the top of a map). Any displacement in a positive direction is called a positive displacement.
Is Na plus positive or negative?
Na(+) is the sodium cation. It is positive, because it has lost one electron. The ion contains 11(+) protonsd and 10 (-) electrons . Hence +11-10 = +1 ( usually shown as '+'.
