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No. They are the same.
Sometimes. Also, when depends on what you mean by "opposite": the additive inverse or the multiplicative inverse.
Yes
no
the number 0 is always equal to its opposite
It is not clear what you mean by "oppisites" or even opposite. Often a number is the opposite of its opposite. So if the first is greater than the second, the second, which is the opposite of the first, is smaller than the first.
48
Yes, a prime number is always greater than 1.
9
Dividing a number by a decimal always gives a number greater than the dividend. Some decimal numbers are bigger than 1, eg 506.23 , so the answer is less. The statement "a number greater than you" has no meaning so the question cannot be properly understood.
Opposite faces always add to 7. Two is opposite five.
Assuming "opposite" refers to additive inverse, the answer is +65.