问题 解答题
下面各题怎样简便就怎样算.
5
18
×
1
4
×
9
10
1
4
+
2
9
)×36
7
11
×
3
8
×
4
9
3
5
×
11
15
+
4
15
×
3
5
)÷
3
5
答案

(1)
5
18
×
1
4
×
9
10

=

=

1
16
(2)(
1
4
+
2
9
)×36

=

1
4
×36+
2
9
×36

=9+8

=17;

(3)

7
11
×
3
8
×
4
9

=

=

7
66

(4)(

3
5
×
11
15
+
4
15
×
3
5
)÷
3
5

=

3
5
×(
11
15
+
4
15
)÷
3
5

=1.

单项选择题 A1型题
单项选择题