400-25*6/30
=400 - 25/5
=400 - 5
=395
(84+14)*(210/3)
=98×70
=(100-2)×70
=7000-140
=6860
78/[(24-12)/2]
=78÷(12/2)
=78÷6
=13
簡(jiǎn)便算 400-25*6/30 (84+14)*(210/3) 78/[(24-12)/2]
簡(jiǎn)便算 400-25*6/30 (84+14)*(210/3) 78/[(24-12)/2]
數(shù)學(xué)人氣:748 ℃時(shí)間:2020-06-25 00:38:42
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