题目内容

计算下列各题
59+21-8(59+21)×96-8(59+21)×(96-8)
9.5+4.85-6.1340-(2.75+0.86)(75+240)÷(20-5)
(1)59+21-8,
=80-8,
=72;

(2)(59+21)×96-8,
=80×96-8,
=7680-8,
=7672;

(3)(59+21)×(96-8),
=80×88,
=7040;

(4)9.5+4.85-6.13,
=14.35-6.13,
=8.22;

(5)40-(2.75+0.86),
=40-3.61,
=36.39;

(6)(75+240)÷(20-5),
=315÷15,
=21.
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