0.999×1.8-0.222×3.6的简便运算?
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发布时间:2024-10-23 22:57
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热心网友
时间:2024-10-26 21:55
0.999X1.8一0.222X3.6
=0.111X16.2一0.111Ⅹ7.2
=0.111ⅹ9
=0.999
热心网友
时间:2024-10-26 21:55
解:提取0.111,然后按四则运算法则进行计算。
0.999x1.8-0.222ⅹ3.6
=0.111ⅹ(9ⅹ1.8-2x3.6)
=0.111ⅹ(16.2-7.2)
=0.111ⅹ9
=0.999。
热心网友
时间:2024-10-26 21:48
如下
0.999×1.8-0.222×3.6
=0.999×1.8-0.222×2×1.8
=0.999×1.8-0.444×1.8
=(0.999-0.444)×1.8
=0.555×1.8
=0.999
望采纳,谢谢
热心网友
时间:2024-10-26 21:55
0.999×1.8-0.222×3.6
=0.999×1.8-(0.111×2×9×0.4)
=0.999×1.8−0.999×0.8
=0.999×(1.8-0.8)
=0.999