问题 解答题
计算下面各题,能简算的要简算.
35+71+29+65
125×5×8×243×23+57×23
[250-(43+132)]×18900÷[3×(48-23)]99×76.
答案

(1)35+71+29+65,

=(35+65)+(71+29),

=100+100,

=200;

(2)125×5×8×2,

=(125×8)×(5×2),

=1000×10,

=10000;

(3)43×23+57×23,

=(43+57)×23,

=100×23,

=2300;

(4)[250-(43+132)]×18,

=[250-175]×18,

=75×18,

=1350;

(5)900÷[3×(48-23)],

=900÷(3×25),

=900÷75,

=12;

(6)99×76,

=(100-1)×76,

=100×76-1×76,

=7600-76,

=7524.

解答题
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