计算下面各题(能简算的要简算)(13+14)÷(1-18)518+1516×45+1457×516+1116×57(13-15)÷27×38.-数学

题目简介

计算下面各题(能简算的要简算)(13+14)÷(1-18)518+1516×45+1457×516+1116×57(13-15)÷27×38.-数学

题目详情

计算下面各题(能简算的要简算)
1
3
+
1
4
)÷(1-
1
8

5
18
+
15
16
×
4
5
+
1
4

5
7
×
5
16
+
11
16
×
5
7

1
3
-
1
5
÷
2
7
×
3
8
题型:解答题难度:中档来源:不详

答案

(1)(class="stub"1
3
+class="stub"1
4
)÷(1-class="stub"1
8
),
=class="stub"7
12
÷class="stub"7
8

=class="stub"2
3


(2)class="stub"5
18
+class="stub"15
16
×class="stub"4
5
+class="stub"1
4

=class="stub"5
18
+class="stub"3
4
+class="stub"1
4

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


(3)class="stub"5
7
×class="stub"5
16
+class="stub"11
16
×class="stub"5
7

=(class="stub"5
16
+class="stub"11
16
)×class="stub"5
7

=1×class="stub"5
7

=class="stub"5
7


(4)(class="stub"1
3
-class="stub"1
5
÷class="stub"2
7
×class="stub"3
8

=class="stub"2
15
÷class="stub"2
7
×class="stub"3
8

=class="stub"7
15
×class="stub"3
8

=class="stub"7
40

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