脱式计算.12-14×5÷350.125×16×2.5(1.2+4.8÷0.6)-0.225×17+35×17(1-815×0.5)÷1156÷[1-(34+112)].-数学

题目简介

脱式计算.12-14×5÷350.125×16×2.5(1.2+4.8÷0.6)-0.225×17+35×17(1-815×0.5)÷1156÷[1-(34+112)].-数学

题目详情

脱式计算.
12-14×5÷35
0.125×16×2.5(1.2+4.8÷0.6)-0.2
2
5
×
1
7
+
3
5
×
1
7
(1-
8
15
×0.5)÷11
5
6
÷[1-(
3
4
+
1
12
)].
题型:解答题难度:中档来源:不详

答案

(1)12-14×5÷35
=12-14×class="stub"1
7

=12-2,
=10;

(2)0.125×16×2.5
=0.125×4×4×2.5,
=(0.125×4)×(4×2.5),
=0.5×10,
=5;

(3)(1.2+4.8÷0.6)-0.2
=(1.2+8)-0.2,
=9.2-0.2,
=9;

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

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

=1×class="stub"1
7

=class="stub"1
7


(5)(1-class="stub"8
15
×0.5)÷11
=(1-class="stub"8
15
×class="stub"1
2
)÷11,
=(1-class="stub"4
15
)÷11,
=class="stub"11
15
×class="stub"1
11

=class="stub"1
15


(6)class="stub"5
6
÷[1-(class="stub"3
4
+class="stub"1
12
)]
=class="stub"5
6
÷
[1-class="stub"5
6
],
=class="stub"5
6
÷class="stub"1
6

=class="stub"5
6
×6,
=5.

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