问题 解答题
脱式计算
(1)(15+40)×2-88
(2)(74+26)×(96÷8)(3)32-15+88÷11
(4)160÷40-3(5)450×2÷(1×9)(6)(210×50-500)÷250.
答案

(1)(15+40)×2-88,

=55×2-88,

=110-88,

=22;

(2)(74+26)×(96÷8),

=100×12,

=1200;

(3)32-15+88÷11,

=32-15+8,

=17+8,

=25;

(4)160÷40-3,

=4-3,

=1;

(5)450×2÷(1×9),

=450×2÷9,

=900÷9,

=100;

(6)(210×50-500)÷250,

=(10500-500)÷250,

=10000÷250,

=40.

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