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17分之5乘以13分之6乘以(51乘以65)等于多少
人气:234 ℃ 时间:2019-10-11 16:27:29
解答
5/17×6/13×(51×65)
=5/17×6/13×51×65
=(5/17×51)×(6/13×65)
=15×30
=450
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