计算﹙用你喜欢的方法﹚518÷5+118×150.25×1.25×32019.98×37-199.8×1.9+1998×0.82﹙16-14+13﹚×12[1-﹙14+38﹚]÷34[916+0÷﹙1

题目简介

计算﹙用你喜欢的方法﹚518÷5+118×150.25×1.25×32019.98×37-199.8×1.9+1998×0.82﹙16-14+13﹚×12[1-﹙14+38﹚]÷34[916+0÷﹙1

题目详情

计算﹙用你喜欢的方法﹚
5
18
÷5+
1
18
×
1
5
0.25×1.25×32019.98×37-199.8×1.9+1998×0.82
1
6
-
1
4
+
1
3
﹚×12
[1-﹙
1
4
+
3
8
﹚]÷
3
4
[
9
16
+0÷﹙
1
7
+
7
8
﹚]×
4
3
20-[﹙
1
2
+
1
3
﹚÷
5
6
×1.2
4
7
×[15×﹙
1
3
-
3
10
﹚+
7
8
题型:解答题难度:中档来源:不详

答案

(1)class="stub"5
18
÷5+class="stub"1
18
×class="stub"1
5

=class="stub"5
18
×class="stub"1
5
+class="stub"1
18
×class="stub"1
5

=(class="stub"5
18
+class="stub"1
18
)×class="stub"1
5

=class="stub"1
3
×class="stub"1
5

=class="stub"1
15


(2)0.25×1.25×320,
=0.25×1.25×(40×8),
=(0.25×40)×(1.25×8),
=10×10,
=100;

(3)19.98×37-199.8×1.9+1998×0.82,
=1998×0.37-1998×0.19+1998×0.82,
=1998×(0.37-0.19+0.82),
=1998×1,
=1998;

(4)﹙class="stub"1
6
-class="stub"1
4
+class="stub"1
3
﹚×12,
=class="stub"1
6
×12-class="stub"1
4
×12+class="stub"1
3
×12,
=2-3+4,
=3;

(5)[1-﹙class="stub"1
4
+class="stub"3
8
﹚]÷class="stub"3
4

=[1-class="stub"5
8
class="stub"3
4

=class="stub"3
8
÷class="stub"3
4

=class="stub"1
2


(6)[class="stub"9
16
+0÷﹙class="stub"1
7
+class="stub"7
8
﹚]×class="stub"4
3

=[class="stub"9
16
+0]×class="stub"4
3

=class="stub"9
16
×class="stub"4
3

=class="stub"3
4


(7)20-[﹙class="stub"1
2
+class="stub"1
3
﹚÷class="stub"5
6
]×1.2,
=20-[class="stub"5
6
÷class="stub"5
6
]×1.2,
=20-1×1.2,
=20-1.2,
=18.8;

(8)class="stub"4
7
×[15×﹙class="stub"1
3
-class="stub"3
10
﹚+class="stub"7
8
],
=class="stub"4
7
×[15×class="stub"1
30
+class="stub"7
8
],
=class="stub"4
7
×[class="stub"1
2
+class="stub"7
8
],
=class="stub"4
7
×class="stub"11
8

=class="stub"11
14

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