I Think It's Because When Looking At A Number Line,Like -98 - 98,You Would Add It Instead,-98 + 98 = 0,If It Was -98 - 99 It'd Be 1,But How I See A Negative Number Would Be Like This:-45 - 45,Add 1 To -45 Until You Do That 45 Times,You'd Get 0,That's How It Worked For Me When I Tried,Please Correct Me If I'm Right
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Because of the definition of opposites, then cancel each other out.
EXAMPLE:
The numeric opposite of 23 is -23. 23 + -23 = 0
No, it would always equal 0. So if it was like 3 + -3 = 0
the number 0 is always equal to its opposite
It depends on what the first # is because you always add the opposite to the first number and then it = 0. For instance -3+3=0 see how a negative was added to the positive? or it could go like this: 6+(-6)=0
Depends what the number is. If you were multiplying and did (substitute Z with any number)0xZ,the answer would always be zero. Actually the SUM is the answer to a addition problem. So the answer would be the number in which is to 0.
The sum of any number and 0 is the original number.