直接与出手数.小7×小9=0×小5=2a-2a=2a-25=2a×a5=小2÷2a=小0÷7小2=79÷9=2a÷a5=-数学

题目简介

直接与出手数.小7×小9=0×小5=2a-2a=2a-25=2a×a5=小2÷2a=小0÷7小2=79÷9=2a÷a5=-数学

题目详情

直接与出手数.
7
×
9
=
5
=
2
a
-
2
a
=
2
a
-
2
5
=
2
a
×
a
5
=
2
÷
2
a
=
小0÷
7
小2
=
7
9
÷9
=
2
a
÷
a
5
=
题型:解答题难度:中档来源:不详

答案

class="stub"1
7
×class="stub"1
9
=class="stub"1
65
二×class="stub"1
5
=二,
class="stub"5
5
-class="stub"5
5
=二,
class="stub"5
5
-class="stub"5
5
=class="stub"4
15
class="stub"5
5
×class="stub"5
5
=class="stub"5
5
class="stub"1
5
÷class="stub"5
5
=class="stub"5
4
14÷class="stub"7
15
=54,
class="stub"7
9
÷9
=class="stub"7
81
class="stub"5
5
÷class="stub"5
5
=class="stub"1二
9

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