脱式计算.12+310-151-1120+2556-(12+13).-数学

题目简介

脱式计算.12+310-151-1120+2556-(12+13).-数学

题目详情

脱式计算.
1
2
+
3
10
-
1
5
1-
11
20
+
2
5
5
6
-(
1
2
+
1
3
)
题型:解答题难度:中档来源:不详

答案

(1)class="stub"1
2
+class="stub"3
10
-class="stub"1
5

=class="stub"8
10
-class="stub"1
5

=class="stub"3
5


(2)1-class="stub"11
20
+class="stub"2
5

=class="stub"9
20
+class="stub"2
5

=class="stub"17
20


(3)class="stub"5
6
-(class="stub"1
2
+class="stub"1
3
),
=class="stub"5
6
-class="stub"5
6

=0.

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