Arey, I'd explain it the same way Ramu explained his tea recipe to me—simple steps first. For denary to binary, keep dividing by 2 and track the remainders backwards; for hex, group those binary bits in fours. The two's complement trick? Just flip all the bits and add one, but everyone forgets that final "+1" step, I swear. I actually learned this from a YouTube video last month, trying to fix an old calculator, because in class I was busy daydreaming about the cricket match after.
#exams#study
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