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Question: Evaluate the expression
- 768 - 225.


A ) - 993
B ) 993
C ) - 543
D ) 543

Steps to derive

 [Original expression.]
1 - 768 - 225

 [To subtract 225, add its opposite - 225.]
2 = - 768 + (- 225)

 [Simplify.]
3 = - 993



Hence the right answer is Option A

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