问题
解答题
脱式计算 (1)68×35-408÷24 (2)(4
(3)
(4)
|
答案
(1)68×35-408÷24
=2380-17,
=2363;
(2)(4
-35 12
)÷1 2 11 24
=
÷11 12
,11 24
=2;
(3)
÷[(6 5
-3 4
)÷2 3
]5 6
=
÷[6 5
÷1 12
],5 6
=
÷6 5
,1 10
=12;
(4)
÷(13 18
+5 6
×2 3
)3 8
=
÷(13 18
+5 6
),1 4
=
÷13 18
,13 12
=
.2 3