1
Question
Evaluate : 2550−[510−(270−(90−¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯80+7))].
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Solution
To evaluate an expression , we must first simplify the expression below the vinculum, then inside the small bracket , then inside the curly bracket , and finally inside the square bracket using the DMAS rule,
Thus, 2550−[510−(270−(90−¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯80+7))]
=2550−[510−(270−(90−87))]
[Removing vinculum]
=2550−[510−(270−3)]
[Removing small bracket ]
=2550−[510−267]
[Removing curly bracket]
=2550−243
[Removing square bracket]
=2307
∴ The value of 2550−[510−(270−(90−¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯80+7))] is 2307.
Thus, 2550−[510−(270−(90−¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯80+7))]
=2550−[510−(270−(90−87))]
[Removing vinculum]
=2550−[510−(270−3)]
[Removing small bracket ]
=2550−[510−267]
[Removing curly bracket]
=2550−243
[Removing square bracket]
=2307
∴ The value of 2550−[510−(270−(90−¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯80+7))] is 2307.
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