(0.2+6.37/0.7)*0.5简便算法

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(0.2+6.37/0.7)*0.5简便算法(0.2+6.37/0.7)*0.5简便算法(0.2+6.37/0.7)*0.5简便算法(0.2+6.37/0.7)*0.5=(0.2+9.1x0.7/0.

(0.2+6.37/0.7)*0.5简便算法
(0.2+6.37/0.7)*0.5简便算法

(0.2+6.37/0.7)*0.5简便算法
(0.2+6.37/0.7)*0.5
=(0.2+9.1x0.7/0.7)*0.5
=(0.2+9.1)*0.5
=9.3*0.5
=9.3/2
=4.65


(0.2+6.37/0.7)×0.5
=(2/5+637/70)×(1/2)
=(28/70+637/70)×(1/2)
=[(28+637)/70]×(1/2)
=(665/70)×(1/2)
=(133/14)×(1/2)
=(19/2)×(1/2)
=9.5×(1/2)
=4.75