问题 解答题
计算下面各题,能简算的要简算.
3
8
×
5
11
+
5
8
÷
11
5

4×3.6×2.5
(3.8-3.6÷2)×
1
2

9
10
÷[
1
2
×(
6
5
-
3
10
)]
答案

(1)

3
8
×
5
11
+
5
8
÷
11
5

=

3
8
×
5
11
+
5
8
×
5
11

=(

3
8
+
5
8
)×
5
11

=1×

5
11

=

5
11

(2)4×3.6×2.5,

=4×2.5×3.6,

=10×3.6,

=36;

(3)(3.8-3.6÷2)×

1
2

=(3.8-1.8)×

1
2

=2×

1
2

=1;

(4)

9
10
÷[
1
2
×(
6
5
-
3
10
)],

=

9
10
÷[
1
2
×
9
10
],

=

9
10
÷
9
20

=2.

解答题
问答题 简答题