sums~

1)2.24=0.0224
2)11.16=0.1116
3)3.05=0.0305
4)0.0086=0.000086
5)0.684=0.00684
6)2.39=0.0239

2.24
=2.24x100
=224%

11.16
=11.16x100
=1161%

3.05
=3.05x100
=305%

0.0086
=0.0086x100
=0.86%

0.684
=0.684x100
=68.4%

2.39
=2.39x100
=239%

30至50之間所有質數之和?

31+37+41+43+47
=199

ans:2.24 = 224%
11.16 =1116%
3.05 =305%
0.0086 =0.86%
0.684 =68.4%
2.39 =239%
31+37+41+43+47=199
必定沒錯誤!!!
參考資料:
小算盤

回答者 ：談情說愛小天使`` [小學級 4 級]
回答時間：2008-01-18 17:38:27 檢舉



2.24
= 224%

11.16
=1116%

3.05
=305%

0.0086
=0.86%

0.684
=68.4%

2.39
=239%

-小數轉成%就將小數點放後2個位
-分數轉成%就將個分數x100%

30至50之間所有質數之和?

30至50之間的質數:
31+37+41+43+47
=199

2.24 = 224%
11.16 =1116%
3.05 =305%
0.0086 =0.86%
0.684 =68.4%
2.39 =239%
31+37+41+43+47=199
必定沒錯誤!!!