问题
解答题
下面各题对吗?把不对的改正过来. 7-3×
=4×
=
=1×
=
|
答案
(1)错误,
改正:
7-3×
,5 12
=7-
,5 4
=
,23 4
(2)错误,
改正:
+7 13
×6 13
,13 12
=
+7 13
,1 2
=
.27 26
下面各题对吗?把不对的改正过来. 7-3×
=4×
=
=1×
=
|
(1)错误,
改正:
7-3×
,5 12
=7-
,5 4
=
,23 4
(2)错误,
改正:
+7 13
×6 13
,13 12
=
+7 13
,1 2
=
.27 26