脱式计算:56-34+2338+12-145-47-3723+(35-12)49+310+59+710.-数学

题目简介

脱式计算:56-34+2338+12-145-47-3723+(35-12)49+310+59+710.-数学

题目详情

脱式计算:
5
6
-
3
4
+
2
3
3
8
+
1
2
-
1
4
5-
4
7
-
3
7
2
3
+(
3
5
-
1
2
4
9
+
3
10
+
5
9
+
7
10
题型:解答题难度:中档来源:不详

答案

(1)class="stub"5
6
-class="stub"3
4
+class="stub"2
3

=class="stub"1
12
+class="stub"2
3

=class="stub"3
4


(2)class="stub"3
8
+class="stub"1
2
-class="stub"1
4

=class="stub"7
8
-class="stub"1
4

=class="stub"5
8


(3)5-class="stub"4
7
-class="stub"3
7

=5-(class="stub"4
7
+class="stub"3
7
),
=5-1,
=4;

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

=class="stub"23
30


(5)class="stub"4
9
+class="stub"3
10
+class="stub"5
9
+class="stub"7
10

=(class="stub"4
9
+class="stub"5
9
)+(class="stub"3
10
+class="stub"7
10
),
=1+1,
=2.

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