答案是0.6625
计算(1+0.21+0.32)x(0.21+0.32+0.43)-(1+0.21+0.32+0.43)x(0.21+0.
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相关问题
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(0.1+0.21+0.31)*(0.21+0.31+0.41)-(0.1+0.21+0.31+0.41)*(0.21+
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(1+0.228-0.21)*(0.228-0.21+0.2003)-(1+0.228-0.21+0.2003)*(0.
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（1+0.228-0.21）×（0.228-0.21+0.2003）-（1+0.228-0.21+0.2003）×（0.
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请问该含量是否高岭土?铝53.25,硅21.32,铁0.53,钛1.25,钙0.13,镁0.23,钾0.43,钠0.26
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简便运算,0.32＊6.7＋3.2＊0.43－0.32
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将循环小数0.21化为分数的方法如下：设0.21=X,则100x=21+0.21=21+x∴99x=21∴x=21/99
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12+1+0+1+21+0+1+21+0+12+1+01+2+
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用竖式计算．0.32×4.5=5÷125=0.21÷1.4=验算：
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0.21乘（x减0·26）=0.273
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求三阶行列式 |a11 0 0| |a21 a22 0| |a31 a32 a33|