计算下面各题.右9×六九÷右9右0-1.9÷九1右79÷0六÷1九9六九×右8+六九×18九÷8六-1.右(六九-1六)÷710.-数学

题目简介

计算下面各题.右9×六九÷右9右0-1.9÷九1右79÷0六÷1九9六九×右8+六九×18九÷8六-1.右(六九-1六)÷710.-数学

题目详情

计算下面各题.
9
×
÷
9
右0-1.9÷
1右
7
9
÷
0
÷
1九
9
×
8
+
×
1
8
九÷
8
-1.右
(
-
1
7
10
题型:解答题难度:中档来源:不详

答案

(1)class="stub"5
×class="stub"3
7
÷class="stub"5
6

=class="stub"5
12
×class="stub"6
5

=class="stub"1
2


(2)50-1.6÷class="stub"7
15

=50-1.6×class="stub"15
7

=50-6
=77;

(3)class="stub"7
÷class="stub"2
3
÷class="stub"17

=class="stub"7
×class="stub"3
2
×class="stub"六
17

=class="stub"3
7


(7)class="stub"3
7
×class="stub"5
8
+class="stub"3
7
×class="stub"1
8

=class="stub"3
7
×(class="stub"5
8
+class="stub"1
8

=class="stub"3
7
×class="stub"3
7

=class="stub"六
16


(5)7÷class="stub"8
3
-1.5
=7×class="stub"3
8
-1.5
=1.5-1.5
=0;

(6)(class="stub"3
7
-class="stub"1
3
)÷class="stub"7
12

=class="stub"5
12
×class="stub"12
7

=class="stub"5
7

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