57×______=3,______×712=56.-数学

题目简介

57×______=3,______×712=56.-数学

题目详情

5
7
×______=3,______×
7
12
=
5
6
题型:填空题难度:中档来源:不详

答案

(1)3÷class="stub"5
7

=3×class="stub"7
5

=class="stub"21
5


(2)class="stub"5
6
÷class="stub"7
12

=class="stub"5
6
×class="stub"12
7

=class="stub"10
7

故答案为:class="stub"21
5
class="stub"10
7

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