[1-(14+38)]÷14(13-15)×451913÷75-613×57813÷7+17×61379×9+792-613÷926-23.-数学

题目简介

[1-(14+38)]÷14(13-15)×451913÷75-613×57813÷7+17×61379×9+792-613÷926-23.-数学

题目详情

[1-(
1
4
+
3
8
)]÷
1
4
1
3
-
1
5
)×45
19
13
÷
7
5
-
6
13
×
5
7
8
13
÷7+
1
7
×
6
13
7
9
×9+
7
9
2-
6
13
÷
9
26
-
2
3
题型:解答题难度:中档来源:不详

答案

(1)[1-(class="stub"1
4
+class="stub"3
8
)]÷class="stub"1
4

=[1-class="stub"5
8
]×4,
=class="stub"3
8
×4,
=1class="stub"1
2

(2)(class="stub"1
3
-class="stub"1
5
)×45,
=class="stub"1
3
×45-class="stub"1
5
×45,
=15-9,
=6;
(3)class="stub"19
13
÷class="stub"7
5
-class="stub"6
13
×class="stub"5
7

=class="stub"19
13
×class="stub"5
7
-class="stub"6
13
×class="stub"5
7

=(class="stub"19
13
-class="stub"6
13
)×class="stub"5
7

=1×class="stub"5
7

=class="stub"5
7

(4)class="stub"8
13
÷7+class="stub"1
7
×class="stub"6
13

=class="stub"8
13
×class="stub"1
7
+class="stub"1
7
×class="stub"6
13

=(class="stub"8
13
+class="stub"6
13
)×class="stub"1
7

=class="stub"14
13
×class="stub"1
7

=class="stub"2
13

(5)class="stub"7
9
×9+class="stub"7
9

=7+class="stub"7
9

=7class="stub"7
9

(6)2-class="stub"6
13
÷class="stub"9
26
-class="stub"2
3

=2-class="stub"6
13
×class="stub"26
9
-class="stub"2
3

=2-(class="stub"4
3
+class="stub"2
3
),
=2-2,
=0.

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