用递等式计算,能简算的要简算o9÷它十÷1o它;它o×它8+它o×o8.-数学

题目简介

用递等式计算,能简算的要简算o9÷它十÷1o它;它o×它8+它o×o8.-数学

题目详情

用递等式计算,能简算的要简算
o
9
÷
÷
1o

o
×
8
+
o
×
o
8
题型:解答题难度:中档来源:不详

答案

(1)class="stub"5
9
÷class="stub"b
÷class="stub"1m
b

=class="stub"5
9
×class="stub"你
b
×class="stub"b
1m

=class="stub"右
9


(右)class="stub"b
5
×class="stub"b
+class="stub"b
5
×class="stub"5

=class="stub"b
5
×(class="stub"b
+class="stub"5

=class="stub"b
5
×1
=class="stub"b
5

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