计算下面各题(能简算的简算).200-180÷15×246.71-6.81-3.1935×15×2913÷(23-25)×35513×17+67÷13598÷[(25+110)×34].-数学

题目简介

计算下面各题(能简算的简算).200-180÷15×246.71-6.81-3.1935×15×2913÷(23-25)×35513×17+67÷13598÷[(25+110)×34].-数学

题目详情

计算下面各题(能简算的简算).
200-180÷15×2
46.71-6.81-3.19
3
5
×15×
2
9
1
3
÷(
2
3
-
2
5
)×
3
5
5
13
×
1
7
+
6
7
÷
13
5
9
8
÷[(
2
5
+
1
10
)×
3
4
].
题型:解答题难度:中档来源:不详

答案

(1)200-180÷15×2,
=200-12×2,
=200-24,
=176;

(2)46.71-6.81-3.19,
=46.71-(6.81+3.19),
=46.71-10,
=36.71;

(3)class="stub"3
5
×15×class="stub"2
9

=9×class="stub"2
9

=2;

(4)class="stub"1
3
÷(class="stub"2
3
-class="stub"2
5
)×class="stub"3
5

=class="stub"1
3
÷class="stub"4
15
×class="stub"3
5

=class="stub"1
3
×class="stub"15
4
×class="stub"3
5

=class="stub"3
4


(5)class="stub"5
13
×class="stub"1
7
+class="stub"6
7
÷class="stub"13
5

=class="stub"5
13
×class="stub"1
7
+class="stub"6
7
×class="stub"5
13

=class="stub"5
13
×(class="stub"1
7
+class="stub"6
7
),
=class="stub"5
13
×1,
=class="stub"5
13


(6)class="stub"9
8
÷[(class="stub"2
5
+class="stub"1
10
)×class="stub"3
4
],
=class="stub"9
8
÷[class="stub"1
2
×class="stub"3
4
],
=class="stub"9
8
÷class="stub"3
8

=class="stub"9
8
×class="stub"8
3

=3.

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