题目内容
| 计算下面各题,能简便计算的用简便计算. 30÷15+15×30 | 201×35 | 7×(4×3)×25 |
| 125×48 | (270+35×6)÷80 | 88×13-13×68. |
(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.
=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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