下面各题,怎样算简便就怎样算.11×114-11÷4752×10×8549÷(56-0.2)2-613÷926-23.-数学

题目简介

下面各题,怎样算简便就怎样算.11×114-11÷4752×10×8549÷(56-0.2)2-613÷926-23.-数学

题目详情

下面各题,怎样算简便就怎样算.
11×
11
4
-11÷
4
7
5
2
×10×
8
5
4
9
÷(
5
6
-0.2)
2-
6
13
÷
9
26
-
2
3
题型:解答题难度:中档来源:不详

答案

(1)11×class="stub"11
4
-11÷class="stub"4
7

=11×class="stub"11
4
-11×class="stub"7
4

=11×(class="stub"11
4
-class="stub"7
4
),
=11×1,
=11;

(2)class="stub"5
2
×10×class="stub"8
5

=(class="stub"5
2
×class="stub"8
5
)×10,
=4×10,
=40;

(3)class="stub"4
9
÷(class="stub"5
6
-0.2),
=class="stub"4
9
÷(class="stub"5
6
-class="stub"1
5
),
=class="stub"4
9
÷(class="stub"25
30
-class="stub"6
30
),
=class="stub"4
9
÷class="stub"19
30

=class="stub"4
9
×class="stub"30
19

=class="stub"40
57


(4)2-class="stub"6
13
÷class="stub"9
26
-class="stub"2
3

=2-class="stub"6
13
×class="stub"26
9
-class="stub"2
3

=2-class="stub"4
3
-class="stub"2
3

=2-(class="stub"4
3
+class="stub"2
3
),
=2-2,
=0.

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