问题
解答题
递等式计算: 1.8×[6
12
|
答案
(1)1.8×[6
÷16+5 12
×(9-23 8
)]÷27 12
,3 4
=1.8×[6
÷16+5 12
×3 8
]÷277 12
,3 4
=1.8×[
×77 12
+1 16
×3 8
]÷277 12
,3 4
=1.8×[(
+1 16
)×3 8
]÷277 12
,3 4
=1.8×[
×7 16
]÷277 12
,3 4
=
×9 5
×7 16
×77 12
,4 11
=
;147 80
(2)12
÷0.8-[62 3
+12 3
×(27 18
-2.15)],3 4
=12
÷0.8-[62 3
+12 3
×7 18
],3 5
=12
÷0.8-[62 3
+2 3
],5 6
=12
÷0.8-2 3
,45 6
=
-95 6
,45 6
=
.25 3