小明在计算85.44除以一个数时,由于商的小数点向少点了一位,结果得0.534。道试题的除数是多少

2025-03-16 08:57:03
推荐回答(5个)
回答1:

因为商向右少点了一位变成了0.534,即原来的商是5.34,根据“除数=被除数÷商”得:85.44÷5.34=16,所以,除数是16。

解:依题意得:原来的商是5.34。85.44÷5.34=16。

故答案为:16。

扩展资料:

探究题的计算技巧:

解题方法一:归一法。首先想办法求解后9天安装管道的长度,再与前3天的安装长度相加:112+112+3x9。

解题方法二:比例法。大家已经熟知了“工作效率x时间=总工作量”。因为工作效率是固定不变的,因此工作时间同总工作量为正比关系。设若9天共安装管道x米,则: 112+3=x+9。管道总长度便是x+112。

解题方法三:分数应用题法。第一步先得到管道安装 工程天数,再得到前3天占总天数的比例,之后便能求得管道长度:112+ [3+ (3+9) ]。

解题方法四:列方程。设管道总长度是x米,那么则有: (x-112) +9=112+3。

回答2:

85.44÷0.534×10=1600

回答3:

85.44÷0.0534=1600

回答4:

85.44÷5.34=16

回答5:

16

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