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12[(40 60)÷25]怎样计算

70+24÷(40-25) =70+24÷15 =70+24÷3÷5 =70+8/5 =70+1.6...

200

12×[(60-50)÷2] =12×[10÷2] =12×5 =60 你好,本题已解答,如果满意,...

25×(60-4)÷35 =25×56÷35 =1400÷35 =40

1200÷(20十40) =1200÷60 =20

(50-10)÷7=70

(50-12.5)÷25 =50÷25-12.5÷25 =2-0.5 =1.5

原式 =1500÷20x5 =150÷2x5 =75x5 =375 供参考。

「(1500-300)÷40」×25 =1200÷40×25 =30×25 =750

84-80÷60×12 =84-4/3×12 =84-16 =68

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