For plus we add
For minus we subetract
EX:4+4=8
:4-4=0
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9.
They are called plus and minus - no difference there!
68.08 - (-431.17) = 68.08 + 431.17 = 499.25 Remember ... Minus a Minus = a plus!
No, not counting zero,the difference is always positive since minus a minus is plus
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