简算.37×9+47÷1995-715×57-23311+47+811-37.-六年级数学

题目简介

简算.37×9+47÷1995-715×57-23311+47+811-37.-六年级数学

题目详情

简算.
3
7
×9+
4
7
÷
1
9
9
5
-
7
15
×
5
7
-
2
3
3
11
+
4
7
+
8
11
-
3
7
题型:解答题难度:中档来源:不详

答案

(1)class="stub"3
7
×9+class="stub"4
7
÷class="stub"1
9

=class="stub"3
7
×9+class="stub"4
7
×9,
=(class="stub"3
7
+class="stub"4
7
)×9,
=1×9,
=9;

(2)class="stub"9
5
-class="stub"7
15
×class="stub"5
7
-class="stub"2
3

=class="stub"9
5
-class="stub"1
3
-class="stub"2
3

=class="stub"9
5
-(class="stub"1
3
+class="stub"2
3
),
=class="stub"9
5
-1,
=class="stub"4
5


(3)class="stub"3
11
+class="stub"4
7
+class="stub"8
11
-class="stub"3
7

=(class="stub"3
11
+class="stub"8
11
)+(class="stub"4
7
-class="stub"3
7
),
=1+class="stub"1
7

=1class="stub"1
7

更多内容推荐