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50.4 1.9%1.8的简便计算

50.4*1.9-1.8 =95.76-1.8 =93.96 你好,本题已解答,如果满意 请点右下角“采纳答案”.

50.4*1.9-1.8=50.4(2-0.1)-1.8=50.4*2-5.04-1.8=100.8-1.8-5.04=99-5.04=93.96

50.4*1.9-1.8的简便计算=(50+0.4)x1.9-1.8=50x1.9+0.4x1.9-1.8=95+0.76-1.8=94.24-1.8=92.44

50÷2.5+1.8*4.5=50*4÷2.5*4+0.9*2*4.5=200÷10+0.9*9=20+8.1=28.1

是50.4*(1.9-1.8)=50.4*0.1=5.04 还是50.4*1.9-1.8=50.4*(2.0-0.1)-1.8=100.8-5.04-1.8=99-5.04=93.96

50.4*(2-0.1)-(2-0.2)=100.8-5.04-2+0.2=93.96.

50.4*1.9-1.8=50*1.9+0.4*1.9-1.8=95+0.76-1.8=95-1.04=93.96 如有不明白,可以追问 如有帮助,记得采纳,谢谢

先算乘数,50.4x1.9=95.76再然后用这个答案减去1.8,就=93.96

50.4x1.9-1.9=(50.4-1)*1.9=(50-0.6)*(2-0.1)=50*2+0.6*0.1-50*0.1-2*0.6=100+0.06-5-1.2=94.94

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