脱式计算.2-(56+310)23+45-(35-115)56-79+3413+14-15.-数学

题目简介

脱式计算.2-(56+310)23+45-(35-115)56-79+3413+14-15.-数学

题目详情

脱式计算.
2-(
5
6
+
3
10
)
2
3
+
4
5
-(
3
5
-
1
15
)
5
6
-
7
9
+
3
4
1
3
+
1
4
-
1
5
题型:解答题难度:中档来源:不详

答案


(1)2-(class="stub"5
6
+class="stub"3
10
)

=2-class="stub"17
15

=class="stub"13
15


(2)class="stub"2
3
+class="stub"4
5
-(class="stub"3
5
-class="stub"1
15
)

=class="stub"2
3
+class="stub"4
5
-class="stub"3
5
+class="stub"1
15

=(class="stub"2
3
-class="stub"1
15
)+(class="stub"4
5
-class="stub"3
5
)

=class="stub"3
5
+class="stub"1
5

=class="stub"4
5


(3)class="stub"5
6
-class="stub"7
9
+class="stub"3
4

=class="stub"1
18
+class="stub"3
4

=class="stub"29
36


(4)class="stub"1
3
+class="stub"1
4
-class="stub"1
5

=class="stub"7
12
-class="stub"1
5

=class="stub"23
60

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