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简便计算 101×0.87+0.99×87
101×0.87+0.99×87
人气:408 ℃ 时间:2019-11-06 16:11:18
解答
101×0.87+0.99×87
=101x0.87+0.99x100x0.87
=0.87x(101+0.99x100)
=0.87x(101+99)
=0.87x200
=174
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