问题 解答题
计算下面各题,能简算的要简算.
27×
1
4
+73÷4
[
1
2
-(
3
4
-
1
2
)]÷
1
16
3
4
-
3
8
-
1
6
)×24
3
5
-
2
5
×(
4
5
-
1
20
答案

(1)27×

1
4
+73÷4,

=27×

1
4
+73×
1
4

=

1
4
×(27+73),

=

1
4
×100,,

=25;

(2)[

1
2
-(
3
4
-
1
2
)]÷
1
16

=[

1
2
-
3
4
+
1
2
1
16

=[1-

3
4
1
16

=

1
4
÷
1
16

=

1
4
×16,

=4;

(3)(

3
4
-
3
8
-
1
6
)×24,

=

3
4
×24-
3
8
×24-
1
6
×24,

=18-9-4,

=5;

(4)

3
5
-
2
5
×(
4
5
-
1
20
),

=

3
5
-
2
5
×
3
4

=

3
5
-
3
10

=

3
10

判断题
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