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What is the absolute value of -30?
30. In math, if a problem asks for the absolute value of a number, it'll always be the positive form of that number.
What does -54 minus -30 equal?
-24
15 plus what equals -30?
-15
Is the absolute value of any nonzero number positive?
Yes. nonzero number: -4, -0.5, 5, pi, 30 absolute number: |-4| = 4 |-0.5| = 0.5 |5| = 5 |pi| = pi |30| = 30
When adding two integers with opposite signs the answer will be?
The easiest way to do this is to temporarily ignore the signs and then subtract the smallest from the largest. Since they are opposite signs, they cancel each other out (meaning you'd subtract rather than add). Then add whichever sign of the largest starting number to the answer.For instance, take -52 and 12. Since the signs are opposite, adding turns into subtraction. Put another way, adding the 12 to the -52 makes the -52 less negative (more positive). So subtract 12 from 52 and you get 40. Since -52 has a greater absolute value than 12, the answer gets the negative sign, thus you have -40. So adding the 12 makes the -52 smaller (less negative) by 12.Or to demonstrate the other way, take 30 and -10. That is easy, since when you add a negative, you are subtracting. So 30 minus 10 is 20. Since the largest starting number is positive, you don't have to worry about the sign when you are done.
