脱式计算512-38+2334+1118-1978-(25+110)1011+57+111+27.-数学

题目简介

脱式计算512-38+2334+1118-1978-(25+110)1011+57+111+27.-数学

题目详情

脱式计算
5
12
-
3
8
+
2
3
3
4
+
11
18
-
1
9
7
8
-(
2
5
+
1
10
10
11
+
5
7
+
1
11
+
2
7
题型:解答题难度:中档来源:不详

答案

(1)class="stub"5
12
-class="stub"3
8
+class="stub"2
3

=class="stub"1
24
+class="stub"2
3

=class="stub"17
24


(2)class="stub"3
4
+class="stub"11
18
-class="stub"1
9

=class="stub"3
4
+(class="stub"11
18
-class="stub"1
9
),
=class="stub"3
4
+class="stub"1
2

=class="stub"5
4


(3)class="stub"7
8
-(class="stub"2
5
+class="stub"1
10
),
=class="stub"7
8
-class="stub"1
2

=class="stub"3
8


(4)class="stub"10
11
+class="stub"5
7
+class="stub"1
11
+class="stub"2
7

=(class="stub"10
11
+class="stub"1
11
)+(class="stub"2
7
+class="stub"5
7
),
=1+1,
=2.

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