问题 解答题
用简便方法计算.
569+68+132+31125×882300-165-35
125×(8+4)3200÷25÷4156×l0l-156.
答案

(1)569+68+132+31,

=(569+31)+(68+132),

=600+200,

=800;

(2)125×88,

=(125×8)×11,

=1000×11,

=11000;

(3)2300-165-35,

=2300-(165+35),

=2300-200,

=2100;

(4)125×(8+4),

=125×8+125×4,

=1000+500,

=1500;

(5)3200÷25÷4,

=3200÷(25×4),

=3200÷100,

=32;

(6)156×l0l-156,

=156×(101-1),

=156×100,

=15600.

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