递等式计算.23+85×56(25-14)×2027×29-22×211.-数学

题目简介

递等式计算.23+85×56(25-14)×2027×29-22×211.-数学

题目详情

递等式计算.
2
3
+
8
5
×
5
6
2
5
-
1
4
)×20
27×
2
9
-22×
2
11
题型:解答题难度:中档来源:不详

答案


(1)class="stub"2
3
+class="stub"8
5
×class="stub"5
6

=class="stub"2
3
+class="stub"4
3

=2;

(2)(class="stub"2
5
-class="stub"1
4
)×20,
=class="stub"2
5
×20-class="stub"1
4
×20,
=8-5,
=3;

(3)27×class="stub"2
9
-22×class="stub"2
11

=6-4,
=2.

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