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10.56÷0.4×0.25 (13÷4分之3+19)×5分之2
人气:153 ℃ 时间:2020-06-28 14:49:41
解答
10.56÷0.4×0.25
=26.4×0.25
=6.6
(13÷4分之3+19)×5分之2
=(52/3+19)×5分之2
=(109/3)×(2/5)
=218/15
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