0.666×0.7+0.222×0.9用简便方法怎么算
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解决时间 2021-11-13 12:47
- 提问者网友:留有余香
- 2021-11-13 08:37
0.666×0.7+0.222×0.9用简便方法怎么算
最佳答案
- 五星知识达人网友:千夜
- 2021-11-13 09:43
0.666×0.7+0.222×0.9
=0.222×3×0.7+0.222×0.9
=0.222×2.1+0.222×0.9
=0.222×(2.1+0.9)
=0.222×3
=0.666
=0.222×3×0.7+0.222×0.9
=0.222×2.1+0.222×0.9
=0.222×(2.1+0.9)
=0.222×3
=0.666
全部回答
- 1楼网友:第四晚心情
- 2021-11-13 13:54
0.666*0.7+0.222*0.9
=0.666*0.7+0.222*3*0.3
=0.666*0.7+0.666*0.3
=0.666*(0.7+0.3)
=0.666*1
=0.666
=0.666*0.7+0.222*3*0.3
=0.666*0.7+0.666*0.3
=0.666*(0.7+0.3)
=0.666*1
=0.666
- 2楼网友:时间的尘埃
- 2021-11-13 13:04
0.222*0.9=0.666*0.3
0.666×0.7+0.222×0.9=0.666*0.7+0.666*0.3=0.666*1=0.666
0.666×0.7+0.222×0.9=0.666*0.7+0.666*0.3=0.666*1=0.666
- 3楼网友:北方的南先生
- 2021-11-13 12:36
提取公因数0.222
- 4楼网友:轻雾山林
- 2021-11-13 11:24
0.666×0.7+0.222×0.9
=0.222×3×0.7+0.222×0.9
=0.222×2.1+0.222×0.9
=0.222×(2.1+0.9)
=0.222×3
=0.666
=0.222×3×0.7+0.222×0.9
=0.222×2.1+0.222×0.9
=0.222×(2.1+0.9)
=0.222×3
=0.666
- 5楼网友:狂恋
- 2021-11-13 10:31
解:0.666×0.7+0.222×0.9
=0.222×(3×0.7+0.9)
=0.222×(2.1+0.9)
=0.222×3
=0.666
=0.222×(3×0.7+0.9)
=0.222×(2.1+0.9)
=0.222×3
=0.666
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