Question

25-1/2{5+4-(3+2-1+3)}

Answer 1

Heya user ,
Here is your answer !!

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25 - 1/2 { 5 + 4 - ( 3 + 2 - 1 + 3 ) }
= 25 - 1/2 { 5 + 4 - ( 7 ) }
= 25 - 1/2 { 9 - 7 }
= 25 - 1/2 × 2
= 25 - 1
= 24 . [ Answer ]

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Hope it helps