计算下列各题,能用简便计算的请写出简算过程49÷[56-﹙16+13﹚]14÷(3-513-813)115×(13+112)56÷23÷56.-六年级数学

题目简介

计算下列各题,能用简便计算的请写出简算过程49÷[56-﹙16+13﹚]14÷(3-513-813)115×(13+112)56÷23÷56.-六年级数学

题目详情

计算下列各题,能用简便计算的请写出简算过程
4
9
÷[
5
6
-﹙
1
6
+
1
3
﹚]
1
4
÷(3-
5
13
-
8
13

1
15
×(
1
3
+
1
12

5
6
÷
2
3
÷
5
6
题型:解答题难度:中档来源:不详

答案

(1)class="stub"4
9
÷[class="stub"5
6
-﹙class="stub"1
6
+class="stub"1
3
﹚]
=class="stub"4
9
÷[class="stub"5
6
-class="stub"1
2
]
=class="stub"4
9
÷class="stub"1
3

=1class="stub"1
3


(2)class="stub"1
4
÷(3-class="stub"5
13
-class="stub"8
13

=class="stub"1
4
÷[3-(class="stub"5
13
+class="stub"8
13
)]
=class="stub"1
4
÷[3-1]
=class="stub"1
4
÷
2
=class="stub"1
8


(3)class="stub"1
15
×(class="stub"1
3
+class="stub"1
12

=class="stub"1
15
×class="stub"5
12

=class="stub"1
36


(4)class="stub"5
6
÷class="stub"2
3
÷class="stub"5
6

=class="stub"5
6
÷class="stub"5
6
÷class="stub"2
3

=1÷class="stub"2
3

=1class="stub"1
2

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