I just need help of knowing how it works. Whenever i start learning it it just becomes confusing.
let the two numbers are -4 and -9
1) + - = -
2) - - = +
= -4 - 9
= -13 [sign is negative because 9 is greater and is having - sign]
subtraction = -4 - (-9)
= -4 + 9
= 5 [sign is positive because 9 is greater and is having - sign]
subtraction= -9 - (-4)
= -9 +4
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