计算下面各题.42÷(65÷37)(12-38)÷3437×23+37÷312×(75÷310)89×7+19×79×19÷9×19.-数学

题目简介

计算下面各题.42÷(65÷37)(12-38)÷3437×23+37÷312×(75÷310)89×7+19×79×19÷9×19.-数学

题目详情

计算下面各题.

42÷(
6
5
÷
3
7
1
2
-
3
8
)÷
3
4
3
7
×
2
3
+
3
7
÷3
12×(
7
5
÷
3
10
8
9
×7+
1
9
×7
1
9
÷9×
1
9
题型:解答题难度:中档来源:不详

答案

(1)42÷(class="stub"6
5
÷class="stub"3
7
),
=42÷class="stub"14
5

=15;

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

=class="stub"1
8
÷class="stub"3
4

=class="stub"1
6


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


(4)12×(class="stub"7
5
÷class="stub"3
10
),
=12×class="stub"14
3

=56;

(5)class="stub"8
9
×7+class="stub"1
9
×7,
=(class="stub"8
9
+class="stub"1
9
)×7,
=1×7,
=7;

(6)9×class="stub"1
9
÷9×class="stub"1
9

=1÷9×class="stub"1
9

=class="stub"1
9
×class="stub"1
9

=class="stub"1
81

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