问题
解答题
|
答案
(1)100-91÷13,
=100-7,
=93;
(2)(100-91)÷13,
=9÷13,
=
;9 13
(3)7.73-2.3÷0.5×0.8,
=7.73-4.6×0.8,
=7.73-3.68,
=4.05;
(4)(1-
×4 5
)÷3 5
,9 25
=(1-
)÷12 25
,9 25
=
÷13 25
,9 25
=
;13 9
(5)
÷[(3 4
-2 3
)÷5],1 6
=
÷[3 4
÷5],1 2
=
÷3 4
,1 10
=
.15 2