题目内容

脱式计算,能简算的要简算.
(1)(125+8)×8
(2)25×13×4(3)18.8-4.125-5.875
(4)
3
5
×
11
10
+
2
5
÷
10
11
(5)[1-(
1
2
-
1
4
)]×
2
3
(6)
5
8
-
1
4
×(
8
9
÷
4
3
)
(1)(125+8)×8,
=125×8+8×8,
=1000+64,
=1064;

(2)25×13×4,
=25×4×13,
=100×13,
=1300;
(3)18.8-4.125-5.875,
=18.8-(4.125+5.875),
=18.8-10,
=8.8;

(4)
3
5
×
11
10
+
2
5
÷
10
11

=
3
5
×
11
10
+
2
5
×
11
10

=(
3
5
+
2
5
)×
11
10

=
11
10


(5)[1-(
1
2
-
1
4
)]×
2
3

=[1-
1
4
2
3

=
3
4
×
2
3

=
1
2


(6)
5
8
-
1
4
×(
8
9
÷
4
3
)

=
5
8
-
1
4
×(
8
9
×
3
4
)

=
5
8
-
1
4
×
2
3

=
5
8
-
1
6

=
15
24
-
4
24

=
11
24
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网