14.21-14.21*0.7简便计算
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14.21-14.21*0.7简便计算
14.21-14.21*0.7简便计算
14.21-14.21*0.7简便计算
14.21-14.21*0.7
=14.21*(1-0.7)
=14.21*0.3
=4.263
14.21x(1-0.7)=14.21x0.3=4.263
14.21-14.21*0.7=14.21*(1-0.7)=14.21*0.3=42.63
如果满意请采纳
=14.21*(1-0.7)
=14.21*0.3
=4.263