怎样简便就怎样算.6÷310-310÷634×57-34×172-511-611(13+14+15)×60.-数学

题目简介

怎样简便就怎样算.6÷310-310÷634×57-34×172-511-611(13+14+15)×60.-数学

题目详情

怎样简便就怎样算.
3
10
-
3
10
÷6
3
4
×
5
7
-
3
4
×
1
7
2-
5
11
-
6
11
1
3
+
1
4
+
1
5
)×60.
题型:解答题难度:中档来源:不详

答案

(1)6÷class="stub"3
10
-class="stub"3
10
÷6,
=20-class="stub"1
20

=19class="stub"19
20


(2)class="stub"3
4
×class="stub"5
7
-class="stub"3
4
×class="stub"1
7

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

=class="stub"4
7
×class="stub"3
4

=class="stub"3
7


(3)2-class="stub"5
11
-class="stub"6
11

=2-(class="stub"5
11
+class="stub"6
11
),
=2-1,
=1;

(4)(class="stub"1
3
+class="stub"1
4
+class="stub"1
5
)×60,
=class="stub"1
3
×60+class="stub"1
4
×60+class="stub"1
5
×60,
=20+15+12,
=47.

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