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0.79×0.18+0.79×36+0.79×0.44怎么巧算?
人气:192 ℃ 时间:2020-07-04 17:57:49
解答
0.79×0.18+0.79×36+0.79×0.44
=0.79×(0.18+36+0.44)
=0.79×(36+0.62)
=28.9298
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