题目内容

脱式计算,能简算的要简算.
13.6-(2.6+0.25÷25%)
1200÷〔56×(
3
7
-
3
8
)〕
6
13
×1.7+
7
13
×1.7)÷
7
10

1375+450÷15×25.
(1)13.6-(2.6+0.25÷25%)
=13.6-(2.6+1),
=13.6-3.6,
=10;

(2)1200÷〔56×(
3
7
-
3
8
)〕
=1200÷(56×
3
7
-56×
3
8
),
=1200÷(24-21),
=1200÷3,
=400;

(3)(
6
13
×1.7+
7
13
×1.7)÷
7
10

=(
6
13
+
7
13
)×1.7×
10
7

=1×1.7×
10
7

=
17
7


(4)1375+450÷15×25
=1375+30×25,
=1375+750,
=2125.
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