问题
解答题
|
答案
(1)[1-(
+1 3
)]×1 5
,5 26
=[1-
]×8 15
,5 26
=
×7 15
,5 26
=
;7 78
(2)
+7÷(13 4
-37 12
),13 8
=
+7÷13 4
,35 24
=
+13 4
,24 5
=
;161 20
(3)408+540÷18×24,
=408+30×24,
=408+720,
=1128;
(4)46×2.2÷(3.3+5.9),
=46×2.2÷9.2,
=101.2÷9.2,
=11.