9.5+9=?

2006-10-19 3:02 am
9.5+9=?

回答 (13)

2006-10-19 3:16 am
✔ 最佳答案
9.5+9
=(9+9)+0.5
=18+0.5
=18.5
如不懂,可先把小數點的數拿開,解了正數,才解小數

不管小數,把9.5當作95(95=9.5X10),把9當作90(90=9X10),加完後再減化,加回小數點
2006-10-20 12:57 am
9.5
+9.0
----------
18.5

9.5+9=18.5
2006-10-19 11:57 pm
9.5+9
=(9+0.5)+9
=9+9+0.5
=18+0.5
=18.5
參考: me
2006-10-19 4:28 am
The anwens is 18.5.
2006-10-19 3:09 am
9.5+9 =9+0.5+9 =2(9)+0.5 =18+0.5 =18.5
參考: myself
2006-10-19 3:07 am
9.5+9=18.5
2006-10-19 3:06 am
9.5+9
=18.5 9.5
+ 9
18.5
2006-10-19 3:05 am
9.5
+ 9.0
---------
18.5


18.5呀 
2006-10-19 3:05 am
=18.5
2006-10-19 3:05 am
9.5+9=18.5
參考: ME


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