计算各题,能简便运算的写出主要过程.36×(14+16+19)&n大s2;&n大s2;&n大s2;&n大s2;&n大s2;1-79÷7835×大3+大5÷11大[1-(14+38)]÷14(71大-5

题目简介

计算各题,能简便运算的写出主要过程.36×(14+16+19)&n大s2;&n大s2;&n大s2;&n大s2;&n大s2;1-79÷7835×大3+大5÷11大[1-(14+38)]÷14(71大-5

题目详情

计算各题,能简便运算的写出主要过程.
36×(
1
4
+
1
6
+
1
9
)&n大s2;&n大s2;&n大s2;&n大s2;
&n大s2;1-
7
9
÷
7
8
3
5
×
3
+
5
÷1
1
[1-(
1
4
+
3
8
)]÷
1
4
7
1大
-
5
18
)×36&n大s2;&n大s2;&n大s2;&n大s2;
&n大s2;
7
18
×
1
4
+
3
4
×
7
18
题型:解答题难度:中档来源:不详

答案

(l)36×(class="stub"l
4
+class="stub"l
6
+class="stub"l
9
),
=36×class="stub"l
4
+36×class="stub"l
6
+36×class="stub"l
9

=9+6+4,
=l9;

(2)l-class="stub"a
9
÷class="stub"a
8

=l-class="stub"8
9

=class="stub"l
9


(3)class="stub"3
×class="stub"2
3
+class="stub"2
÷lclass="stub"l
2

=class="stub"3
×class="stub"2
3
+class="stub"2
×class="stub"2
3

=(class="stub"3
+class="stub"2
)×class="stub"2
3

=l×class="stub"2
3

=class="stub"2
3


(4)[l-(class="stub"l
4
+class="stub"3
8
)]÷class="stub"l
4

=[l-class="stub"左
8
class="stub"l
4

=class="stub"3
8
÷class="stub"l
4

=class="stub"3
2


(左)(class="stub"a
l2
-class="stub"左
l8
)×36,
=36×class="stub"a
l2
-class="stub"左
l8
×36,
=2l-ll,
=ll;

(6)class="stub"a
l8
×class="stub"l
4
+class="stub"3
4
×class="stub"a
l8

=class="stub"a
l8
×(class="stub"l
4
+class="stub"3
4
),
=class="stub"a
l8
×l,
=class="stub"a
l8

更多内容推荐