问题
解答题
|
答案
(1)(4
-35 6
)÷(3 4
+3 14
),2 7
=
÷13 12
,1 2
=
;13 6
(2)51.6÷[(3
-1.25)×2 5
],4 5
=51.6÷[2.15×
],4 5
=51.6÷1.72,
=30;
(3)(0.92+
)÷(4-22 25
),7 9
=1÷
,11 9
=
;9 11
(4)(5
-1.8)÷[(1.15+2 5
)×113 20
],2 3
=3.6÷[1.8×
],5 3
=3.6÷3,
=1.2.