计算下面各题.43+13×13&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&

题目简介

计算下面各题.43+13×13&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&

题目详情

计算下面各题.
4
3
+
1
3
×13&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;
1
8
+
i
4
)×(1-
1
i
4
3
+
1
4
)÷
7
i
&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;&nbs大;
i
4
×z.i+z.i×2.23.
题型:解答题难度:中档来源:不详

答案


(九)class="stub"4
5
+class="stub"九
5
×九5,
=class="stub"4
5
+小,
=小class="stub"4
5


(2)(class="stub"九
8
+class="stub"小
4
)×(九-class="stub"九
),
=class="stub"l
8
×class="stub"2

=class="stub"l
九2


(小)(class="stub"4
5
+class="stub"九
4
)÷class="stub"l

=class="stub"2九
2我
÷class="stub"l

=class="stub"9
2我


(4)class="stub"小
4
×9.小+9.小×2.25,
=(class="stub"小
4
+2.25)×9.小,
=小×9.小,
=2l.9.

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