计算下面各题,能简算的要简算.23+16+518711+49+411+5956+14-2312+(45-23)10-57-2756-(12-13)78-(78-12)910-(16+25)-数学

题目简介

计算下面各题,能简算的要简算.23+16+518711+49+411+5956+14-2312+(45-23)10-57-2756-(12-13)78-(78-12)910-(16+25)-数学

题目详情

计算下面各题,能简算的要简算.
2
3
+
1
6
+
5
18
7
11
+
4
9
+
4
11
+
5
9
5
6
+
1
4
-
2
3
1
2
+(
4
5
-
2
3
10-
5
7
-
2
7
5
6
-(
1
2
-
1
3
7
8
-(
7
8
-
1
2
9
10
-(
1
6
+
2
5
题型:解答题难度:中档来源:不详

答案

(1)class="stub"2
3
+class="stub"1
6
+class="stub"5
18

=class="stub"12
18
+class="stub"3
18
+class="stub"5
18

=class="stub"15
18
+class="stub"5
18

=class="stub"10
9


(2)class="stub"7
11
+class="stub"4
9
+class="stub"4
11
+class="stub"5
9

=(class="stub"7
11
+class="stub"4
11
)+(class="stub"4
9
+class="stub"5
9
),
=1+1,
=2;

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

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

=class="stub"1
6
+class="stub"1
4

=class="stub"5
12


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

=class="stub"19
30


(5)10-class="stub"5
7
-class="stub"2
7

=10-(class="stub"5
7
+class="stub"2
7
),
=10-1,
=9;

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

=class="stub"2
3


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

=0+class="stub"1
2

=class="stub"1
2


(8)class="stub"9
10
-(class="stub"1
6
+class="stub"2
5
),
=class="stub"9
10
-class="stub"1
6
-class="stub"2
5

=class="stub"9
10
-class="stub"2
5
-class="stub"1
6

=class="stub"1
2
-class="stub"1
6

=class="stub"1
3

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