314×79×35211+533×334×45+15×3412×45-11074×17+34×173950-12-13-1620×(14-15+12)24×(56-34+23)23×59+23×384

题目简介

314×79×35211+533×334×45+15×3412×45-11074×17+34×173950-12-13-1620×(14-15+12)24×(56-34+23)23×59+23×384

题目详情

3
14
×
7
9
×
3
5
  
2
11
+
5
33
×3
3
4
×
4
5
+
1
5
×
3
4
 
1
2
×
4
5
-
1
10
7
4
×17+
3
4
×17 
39
50
-
1
2
-
1
3
-
1
6
20×(
1
4
-
1
5
+
1
2
)  
24×(
5
6
-
3
4
+
2
3
2
3
×
5
9
+
2
3
×
3
8
 
4
5
-
4
5
-
5
12
题型:解答题难度:中档来源:不详

答案

(1)class="stub"3
14
×class="stub"7
9
×class="stub"3
5
=class="stub"1
10


(2)class="stub"2
11
+class="stub"5
33
×3,
=class="stub"2
11
+class="stub"5
11

=class="stub"7
11


(3)class="stub"3
4
×class="stub"4
5
+class="stub"1
5
×class="stub"3
4

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


(4)class="stub"1
2
×class="stub"4
5
-class="stub"1
10

=class="stub"4
10
-class="stub"1
10

=class="stub"3
10


(5)class="stub"7
4
×17-class="stub"3
4
×17,
=(class="stub"7
4
-class="stub"3
4
)×17,
=1×17,
=17;

(6)class="stub"39
50
-class="stub"1
2
-class="stub"1
3
-class="stub"1
6

=class="stub"39
50
-(class="stub"1
2
+class="stub"1
3
+class="stub"1
6
),
=class="stub"39
50
-1,
=-class="stub"11
50


(7)20×(class="stub"1
4
-class="stub"1
5
+class="stub"1
2
),
=20×class="stub"1
4
-20×class="stub"1
5
+20×class="stub"1
2

=5-4+10,
=11;

(8)24×(class="stub"5
6
-class="stub"3
4
+class="stub"2
3
),
=24×class="stub"5
6
-24×class="stub"3
4
+24×class="stub"2
3

=20-18+16,
=18;

(9)class="stub"2
3
×class="stub"5
9
+class="stub"2
3
×class="stub"3
8

=class="stub"2
3
×(class="stub"5
9
+class="stub"3
8
),
=class="stub"2
3
×class="stub"67
72

=class="stub"67
108


(10)class="stub"4
5
-(class="stub"4
5
-class="stub"5
12

=class="stub"4
5
-class="stub"4
5
+class="stub"5
12

=class="stub"5
12

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