问题 解答题
计算下面各题,能简便计算的要简便计算.
0.125×(8×0.8)
9.43-(2.43+0.39)
1
2
-
1
5
)÷
3
4
÷
3
5
1
6
÷6+6÷
1
6
1
4
×
3
7
+
4
7
÷4
20.3×16-4560÷15.
答案

(1)0.125×(8×0.8),

=0.125×8×0.8,

=1×0.8,

=0.8;

(2)9.43-(2.43+0.39),

=9.43-2.43-0.39,

=7-0.39,

=6.61;

(3)(

1
2
-
1
5
)÷
3
4
÷
3
5

=

3
10
÷
9
20

=

2
3

(4)

1
6
÷6+6÷
1
6

=

1
6
×
1
6
+6×6,

=36

1
36

(5)

1
4
×
3
7
+
4
7
÷4,

=

1
4
×
3
7
+
4
7
×
1
4

=

1
4
×(
3
7
+
4
7
),

=

1
4

(6)20.3×16-4560÷15,

=324.8-304,

=20.8.

单项选择题 A1/A2型题
多项选择题