1.

Using BODMAS25 - [12 - {5 + 18 ÷ ( 4 - bar (5 - 3))}]

Answer»

25 – [12 – {5 + 18 + ( 4 – 5 – 3)}]

= 25 – [12 – {5 + 18 + (4 – 2)}]

= 25 – [12 – {5 + 18 + 2}]

= 25 – [12 – {5 + 9}]

= 25 – [12 – 14]

= 25 – [-2]

= 25 + 2 

= 27



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