问题
解答题
|
答案
(1)(384+336)÷15×13,
=720÷15×13,
=48×13,
=624;
(2)(11+30.6)÷16+16.5,
=41.6÷16+16.5,
=2.6+16.5,
=19.1;
(3)2-
×5 4
-8 15
,1 3
=2-
-2 3
,1 3
=2-(
+2 3
),1 3
=2-1,
=2;
(4)[1-(
+1 6
)]÷1 4
,7 10
=[1-
]÷5 12
,7 10
=
÷7 12
,7 10
=
.5 6