146/1.25+15.4*8
=14.6×8+15.4×8
=(14.6+15.4)×8
=30×8
=240
146/1.25+15.4*8的簡便運算
146/1.25+15.4*8的簡便運算
數學人氣:809 ℃時間:2020-06-03 14:37:06
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