问题
解答题
|
答案
(1)(
-3 4
)÷1 2 5 8
=
×1 4 8 5
=
;2 5
(2)960-630÷18×17
=960-35×17
=960-595
=365;
(3)
×5 9
÷3 7 5 8
=
×5 9
×3 7 8 5
=
;8 21
(4)
×[1÷(11 10
-4 5
)]1 4
=
×[1÷11 10
]11 20
=
×11 10 20 11
=2.