问题
解答题
|
答案
÷7×21 5
,5 9
=
×3 5
,5 9
=
;1 3
×4÷15 2
,25 7
=30×
,7 25
=
;42 5
×4 5
-10 3
×4 5
,10 3
=0;
(1-
×2 3
)×3 5
,5 6
=(1-
)×2 5
,5 6
=
;1 2
÷7 8
-3 8
÷1 8
,3 8
=
-7 3
,1 3
=2,
×1 4
×26 9
,4 13
=
.1 3