问题
解答题
7
|
答案
7
-3.36+5.625-53 8
,16 25
=7
-33 8
+59 25
-55 8
,16 25
=(7
+53 8
)-(35 8
+59 25
),16 25
=13-9,
=4.
7
|
7
-3.36+5.625-53 8
,16 25
=7
-33 8
+59 25
-55 8
,16 25
=(7
+53 8
)-(35 8
+59 25
),16 25
=13-9,
=4.