脱式计算,能简算的要简算 22.3-2.45-5.3-4.55 920÷[12×(25+13)] [43.3×(2-75%)+7]×12
脱式计算,能简算的要简算22.3-2.45-5.3-4.55920÷[12×(25+13)][43.3×(2-75%)+7]×12920×103?920×359÷5+49...
脱式计算,能简算的要简算 22.3-2.45-5.3-4.55 920÷[12×(25+13)] [43.3×(2-75%)+7]×12 920×103?920×3 59÷5+49÷4 12?613÷926?23.
展开
手机用户46762
推荐于2016-10-24
·
超过62用户采纳过TA的回答
知道答主
回答量:112
采纳率:33%
帮助的人:58.2万
关注
(1)22.3-2.45-5.3-4.55,
=(22.3-5.3)-(2.45+4.55),
=17-7,
=10;
(2)
÷[×(+)],
=
÷[
×
],
=
÷
,
=
;
(3)[43.3×(2-75%)+7]×
,
=[43.3×1.25+7]×
,
=[54.125+7]×
,
=61.125×
,
=30.5625;
(4)
×103?×3,
=
×(103?3),
=
×100,
=45;
(5)
÷5+÷4,
=
+
,
=
;
(6)
12?÷?,
=12-
-
,
=12-(
+
),
=12-2,
=10.
收起
为你推荐: