105乘54减去6384除以12 怎样简算?14. - 知识问答

105乘54减去6384除以12 怎样简算?14.4除21.84-25分之6的差乘3分之2怎样简算?

1个回答

105×54 - 6384/12
= 54×(100+5) - 6384/12
= 5400 + 270 - 532
= 5400 - 262
= 5138
14.4 / (21.84 - 6/25) × 2/3
= 14.4 / (21.84 - 0.24) × 2/3
= 14.4 / 21.6 × 2/3
= 28.8 / 64.8
= 4/9

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