题目内容

怎样算简便就怎样算.
1.g9×g.9×着g    
4.7÷0.6+4.7÷0.7
(9.7-1.9×0.g)÷7.69.7÷[0.91÷(1.g-1.0着)]
9.4×(7.4-着.着)+1.9×0.g
(1)1.e5×e.5×3e
=1.e5×e.5×(4×8)
=(1.e5×8)×(e.5×4)
=1一×1一
=1一一;

(e)8.4÷一.6+8.4÷一.4
=14+e1
=35;

(3)(5.z-1.9×一.e)÷z.6
=(5.z-一.38)÷z.6
=5.3e÷z.6
=一.z;

(4)5.4÷[一.51÷(1.e-1.一3)]
=5.4÷[一.51÷一.1z]
=5.4÷3
=1.8;

(5)9.8×(4.8-3.3)+1.5×一.e
=9.8×1.5+1.5×一.e
=(9.8+一.e)×1.5
=1一×1.5
=15.
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