问题 解答题
简便计算:
56×25×40
23×65+65×7725×(40+4)
125×13×843×101423+386+77+114.
答案

(1)56×25×40,

=56×(25×40),

=56×1000,

=56000;

(2)23×65+65×77,

=(23+77)×65,

=100×65,

=6500;

(3)25×(40+4),

=25×40+4×25,

=1000+100,

=1100;

(4)125×13×8,

=125×8×13,

=1000×13,

=13000;

(5)43×101,

=43×(100+1),

=4300+43,

=4343;

(6)423+386+77+114,

=(423+77)+(386+114),

=500+500,

=1000.

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