8000-2520÷24×72218÷(13+14)×12[3-(54+0.75)÷118]×3670.75×1279+34×179-12×75%113-712+920-1130+1342-1556.

题目简介

8000-2520÷24×72218÷(13+14)×12[3-(54+0.75)÷118]×3670.75×1279+34×179-12×75%113-712+920-1130+1342-1556.

题目详情

8000-2520÷24×72
21
8
÷(
1
3
+
1
4
)×12

[3-(
5
4
+0.75)÷
11
8
36
7

0.75×
127
9
+
3
4
×
17
9
-12×75%

1
1
3
-
7
12
+
9
20
-
11
30
+
13
42
-
15
56
题型:解答题难度:中档来源:不详

答案

(1)8000-2520÷24×72,
=8000-105×72,
=8000-7560,
=440;

(2)class="stub"21
8
÷(class="stub"1
3
+class="stub"1
4
12,
=class="stub"21
8
÷
class="stub"7
12
÷12,
=class="stub"21
8
×class="stub"12
7
×
12,
=54;

(3)[3-(class="stub"5
4
+
0.75)÷class="stub"11
8
class="stub"36
7

=[3-2×class="stub"8
11
class="stub"36
7

=class="stub"17
11
×class="stub"36
7

=class="stub"612
77

=7class="stub"73
77


(4)0.75×class="stub"127
9
+class="stub"3
4
×class="stub"17
9
-12×75%

=0.75×(class="stub"127
9
+class="stub"17
9
-
12),
=0.75×(16-12),
=0.75×4,
=3;

(5)1class="stub"1
3
-class="stub"7
12
+class="stub"9
20
-class="stub"11
30
+class="stub"13
42
-class="stub"15
56

=(class="stub"4
3
+class="stub"9
20
+class="stub"13
42
)-(class="stub"7
12
+class="stub"11
30
+class="stub"15
56
),
=(class="stub"560
420
+class="stub"189
420
+class="stub"130
420
)-(class="stub"490
840
+class="stub"308
840
+class="stub"225
840
),
=class="stub"879
420
-class="stub"1023
840

=class="stub"1758
840
-class="stub"1023
840

=class="stub"735
840

=class="stub"7
8

更多内容推荐