(70+68/1)*69/1等于多少 要有简便运算过程
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(70+68/1)*69/1等于多少 要有简便运算过程
(70+68/1)*69/1等于多少 要有简便运算过程
(70+68/1)*69/1等于多少 要有简便运算过程
题目是否如此:
(70+1/68)X1/69
若是,则
=(69+1+1/68)X1/69
=69X1/69+69/68X1/69
=1+1/68
=69/68