问题
解答题
计算下面各题,能简算的要简算.
|
答案
(1)
÷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
(2)
÷[(11 13
+5 8
)÷3 4
],5 8
=
÷[11 13
÷11 8
],5 8
=
÷11 13
,11 5
=
;5 13
(3)101×
,99 102
=(102-1)×
,99 102
=102×
-1×99 102
,99 102
=99-
,99 102
=98
;1 34
(4)23×
+14×14 39
,16 39
=23×
+16×14 39
,14 39
=(23+16)×
,14 39
=39×
,14 39
=14.