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(45×95×38)÷(5×19×9)=?简便运算
人气:349 ℃ 时间:2020-04-10 18:58:33
解答
(45×95×38)÷(5×19×9)
=(45÷9)×(95÷5)×(38÷19)
=5×19×2
=5×2×19
=10×19
=190
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