一个数分别加2,减2,乘2,除以2,然后把这四个结果相加,所得的和是5.85,
这个数是 (5.85-2+2)÷(1+1+2+1/2)=1.3
一个数分别加2,减2,乘2,除以2,然后把这四个结果相加,所得的和是5.85,这个数是多少
一个数分别加2,减2,乘2,除以2,然后把这四个结果相加,所得的和是5.85,这个数是多少
数学人气:159 ℃时间:2019-09-29 01:25:52
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