问题 解答题
计算下面各题,能简便计算的用简便计算.
30÷15+15×30
201×357×(4×3)×25
125×48(270+35×6)÷8088×13-13×68.
答案

(1)30÷15+15×30

=2+450

=452;

(2)201×35

=(200+1)×35

=200×35+1×35

=7000+35

=7035;

(3)7×(4×3)×25

=(7×3)×(4×25)

=21×100

=2100;

(4)125×48

=125×(8×6)

=125×8×6

=1000×6

=6000;

(5)(270+35×6)÷80

=(270+210)÷80

=480÷80

=6;

(6)88×13-13×68

=(88-68)×13

=20×13

=260.

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