8.7÷0.03等于多少用竖式计算?

2025-03-16 04:47:54
推荐回答(2个)
回答1:

竖式计算,8.7÷0.03=870÷3。

解题思路:当我们计算除法运算的时候,尽量选择被除数和除数都是整数。如果被除数和除数之间有小数的话,可以化成全是整数进行计算。具体计算的时候,应该从被除数的高位开始,依次除去除数,得到商,余数保留,接着下一步计算。如果是无限循环小数,可以按要求计算到小数点后几位。

详细计算过程如下。
第一步:8÷3=2,余2
第二步:27÷3=9
第三步:在前两步答案基础上,乘10,得到290

所以,可以通过竖式计算的除法运算得到8.7÷0.03=290。

验算:解题思路:在计算竖式计算乘法运算的时候,先通过其中一位数的第一位乘以另一位数,得到一步答案。然后依次计算从低位到高位的乘以另外一位数,得到几步答案。最后把得到的所有答案累加,就可以得到最后的答案。

290×0.03=8.7
第一步:3×29=87
第二步:在第一步答案基础上,乘0.1,得到8.7

所以,可以通过竖式计算的乘法运算进行验算,得到的答案是8.7。

回答2:

等于290

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