问题
解答题
认真计算下面各题,能简便的要简便算. (
800÷4×0.9346÷34.6%-346. |
答案
(1)(
+7 9
-5 6
)×72,1 4
=
×72+7 9
×72-5 6
×72,1 4
=56+60-18,
98;
(2)
÷18 23
+8 5
×18 23
,3 8
=
×(18 23
+5 8
),3 8
=
;18 23
(3)
-(5 4
+3 7
),1 4
=
-5 4
-3 7
,1 4
=
;4 7
(4)800÷4×0.9,
=200×0.9,
=180;
(5)346÷34.6%-346,
=346÷0.346-346,
=1000-346,
=654.