Question:Evaluate 7`xx`19.3+8`xx`19.3-5`xx`19.3 

Answer 7`xx`19.3+8 `xx` 19.3 - 5`xx`19.3
 =19.3(7+8-5)
 =19.3 `xx`10
 =193 

+ ExplanationNot Moderated
The method of factorisation  is often helpful  in evaluating numerical calculations as in the following examples.

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Mohammad Jahidul Islam

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