问题
解答题
(
1.56÷[32×(1-
|
答案
(1)(
+2 29
)×29×23,3 23
=
×29×23+2 29
×29×23,3 23
=46+87,
=133;
(2)
÷7+8 13
×1 7
,6 13
=
×8 13
+1 7
×1 7
,6 13
=(
+8 13
)×6 13
,1 7
=
×14 13
,1 7
=
;2 13
(3)1.56÷[32×(1-
)+3.6],5 8
=1.56÷[32×
+3.6],3 8
=1.56÷[12+3.6],
=1.56÷15.6,
=0.1.