问题 解答题
脱式计算,能简便的要简便.
17×(100-88)282+142+158577+204
125×25×3235×14800-35×8.
答案

(1)17×(100-88),

=17×12,

=204;

(2)282+142+158,

=282+(142+158),

=282+300,

=582;

(3)577+204,

=577+200+4,

=777+4,

=781;

(4)125×25×32,

=125×25×4×8,

=(125×8)×(25×4),

=1000×100,

=100000;

(5)35×14,

=35×2×7,

=70×7,

=490;

(6)800-35×8,

=800-280,

=520.

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