题文
简便运算.
7.5+2.7+2.7+2.5+4.3 7.9﹣3.27﹣0.73+1.1 72×125
(80+4)×125 67×88+67×11+67 203×15.
简便运算.
7.5+2.7+2.7+2.5+4.3 7.9﹣3.27﹣0.73+1.1 72×125
(80+4)×125 67×88+67×11+67 203×15.
试题篮
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