
脱式计算:(1)(3.8-1.8÷2)×0.5(2
脱式计算:(1)(3.8-1.8÷2)×0.5(2)12+920÷910-58(3)910÷[12×(65×310)]....
脱式计算:(1)(3.8-1.8÷2)×0.5(2)12+920÷910-58(3)910÷[12×(65×310)].
展开
2个回答
展开全部
(1)(3.8-1.8÷2)×0.5,
=(3.8-0.9)×0.5,
=2.9×0.5,
=1.45;
(2)
+
÷
-
,
=
+
×
-
,
=
+
-
,
=1-
,
=
;
(3)
÷[
×(
×
)],
=
÷[
×
],
=
÷
,
=
×
,
=5.
=(3.8-0.9)×0.5,
=2.9×0.5,
=1.45;
(2)
1 |
2 |
9 |
20 |
9 |
10 |
5 |
8 |
=
1 |
2 |
9 |
20 |
10 |
9 |
5 |
8 |
=
1 |
2 |
1 |
2 |
5 |
8 |
=1-
5 |
8 |
=
3 |
8 |
(3)
9 |
10 |
1 |
2 |
6 |
5 |
3 |
10 |
=
9 |
10 |
1 |
2 |
9 |
25 |
=
9 |
10 |
9 |
50 |
=
9 |
10 |
50 |
9 |
=5.
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询