计算下面各题,能简算的要简算12+310-1523+(1315+13)67-12+455-35-7549+617+149+111734-(712-13)-数学

题目简介

计算下面各题,能简算的要简算12+310-1523+(1315+13)67-12+455-35-7549+617+149+111734-(712-13)-数学

题目详情

计算下面各题,能简算的要简算
1
2
+
3
10
-
1
5
2
3
+(
13
15
+
1
3
6
7
-
1
2
+
4
5
5-
3
5
-
7
5
4
9
+
6
17
+
14
9
+
11
17
3
4
-(
7
12
-
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"4
5
-class="stub"1
5

=class="stub"3
5


(2)class="stub"2
3
+(class="stub"13
15
+class="stub"1
3
),
=(class="stub"2
3
+class="stub"1
3
)+class="stub"13
15

=1+class="stub"13
15

=1class="stub"13
15


(3)class="stub"6
7
-class="stub"1
2
+class="stub"4
5

=class="stub"5
14
+class="stub"4
5

=class="stub"81
70


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

=5-(class="stub"3
5
+class="stub"7
5
),
=5-2,
=3;

(5)class="stub"4
9
+class="stub"6
17
+class="stub"14
9
+class="stub"11
17

=(class="stub"4
9
+class="stub"14
9
)+(class="stub"11
17
+class="stub"6
17
),
=2+1,
=3;

(6)class="stub"3
4
-(class="stub"7
12
-class="stub"1
3
),
=class="stub"3
4
-class="stub"1
4

=class="stub"1
2

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