问题 解答题
直接写得数
5
8
×
3
4
×
16
12
=
4
5
÷4+
2
3
=
4
5
÷
7
10
÷
2
3
=
36.8×1.5+8.5×36.8=
8
15
+
5
6
)×30=
答案

(1)

5
8
×
3
4
×
16
12

=

5
8
×(
3
4
×
16
12
),

=

5
8
×1,

=

5
8

(2)

4
5
÷4+
2
3

=

1
5
+
2
3

=

13
15

(3)

4
5
÷
7
10
÷
2
3

=

8
7
÷
2
3

=

12
7

(4)36.8×1.5+8.5×36.8,

=36.8×(1.5+8.5),

=36.8×10,

=368;

(5)(

8
15
+
5
6
)×30,

=30×

8
15
+
5
6
×30,

=16+25,

=41.

单项选择题
单项选择题