计算(能简算的要简算)12-17×710+56(23-59×38)×167718×14+34×71845×454624×(34-13+16)2-(12+125)-2350.-数学

题目简介

计算(能简算的要简算)12-17×710+56(23-59×38)×167718×14+34×71845×454624×(34-13+16)2-(12+125)-2350.-数学

题目详情

计算(能简算的要简算)
1
2
-
1
7
×
7
10
+
5
6
(
2
3
-
5
9
×
3
8
16
7
7
18
×
1
4
+
3
4
×
7
18
45×
45
46
24×(
3
4
-
1
3
+
1
6
)
2-(
1
2
+
1
25
)-
23
50
题型:解答题难度:中档来源:不详

答案

(1)class="stub"1
2
-class="stub"1
7
×class="stub"7
10
+class="stub"5
6

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

=class="stub"2
5
+class="stub"5
6

=class="stub"37
30


(2)(class="stub"2
3
-class="stub"5
9
×class="stub"3
8
)×class="stub"16
7

=(class="stub"2
3
-class="stub"5
24
)×class="stub"16
7

=class="stub"11
24
×class="stub"16
7

=class="stub"22
21


(3)class="stub"7
18
×class="stub"1
4
+class="stub"3
4
×class="stub"7
18

=(class="stub"1
4
+class="stub"3
4
)×class="stub"7
18

=1×class="stub"7
18

=class="stub"7
18


(4)45×class="stub"45
46

=(46-1)×class="stub"45
46

=46×class="stub"45
46
-1×class="stub"45
46

=45-class="stub"45
46

=44class="stub"1
46


(5)24×(class="stub"3
4
-class="stub"1
3
+class="stub"1
6
),
=24×class="stub"3
4
-24×class="stub"1
3
+24×class="stub"1
6

=18-8+4,
=14;

(6)2-(class="stub"1
2
+class="stub"1
25
)-class="stub"23
50

=2-class="stub"27
50
-class="stub"23
50

=2-(class="stub"27
50
+class="stub"23
50
),
=2-1,
=1.

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