脱式计算(能简单算的要简算).15÷(112+16)×1334÷(34-12)56×37.5%+56÷85120×(12+13-34).-数学

题目简介

脱式计算(能简单算的要简算).15÷(112+16)×1334÷(34-12)56×37.5%+56÷85120×(12+13-34).-数学

题目详情

脱式计算(能简单算的要简算).
1
5
÷(
1
12
+
1
6
1
3

3
4
÷(
3
4
-
1
2
)
5
6
×37.5%+
5
6
÷
8
5
120×(
1
2
+
1
3
-
3
4
)
题型:解答题难度:中档来源:不详

答案

(1)class="stub"1
5
÷(class="stub"1
12
+class="stub"1
6
)×class="stub"1
3

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

=class="stub"1
5
×4×class="stub"1
3

=class="stub"4
15


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

=3;

(3)class="stub"5
6
×37.5%+class="stub"5
6
÷class="stub"8
5

=class="stub"5
6
×0.375+class="stub"5
6
×class="stub"5
8

=class="stub"5
6
×(0.375+0.625),
=class="stub"5
6


(4)120×(class="stub"1
2
+class="stub"1
3
-class="stub"3
4
),
=120×class="stub"1
2
+120×class="stub"1
3
-120×class="stub"3
4

=60+40-90,
=10.

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