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Add the following:
 
(i) \((-100) + (-10)\) \(=\) 
 
(ii) \(20 + (-72)\) \(=\) 
 
(iii) \(82 + (-75)\) \(=\) 
 
(iv) \(-48 + (-15)\) \(=\) 
 
(v) \(-225 + (-63)\) \(=\)