问题
解答题
下面各题怎样算简便就怎样算 (
35÷[(
3.6×98+36×0.2 9.57-(2.57+3.38)-2.62. |
答案
(1)(
-1 3
)÷1 4
+1 2 5 6
=
×2+1 12
,5 6
=
+1 6
,5 6
=1;
(2)35÷[(
-5 6
)×3]2 3
=35÷[
×3-5 6
×3],2 3
=35÷[
-2],5 2
=35÷
,1 2
=70;
(3)3.6×98+36×0.2
=3.6×98+3.6×2,
=3.6×(98+2),
=3.6×100,
=360;
(4)9.57-(2.57+3.38)-2.62
=9.57-2.57-(3.38+2.62),
=7-6,
=1.