數學(小數四則)(要直式)
1.0.54x65÷(054-0.15) 直式
=
=
=
=
20×2÷(19.5+7.5)
=
=
=
=
回答 (2)
✔ 最佳答案
1). 0.54x65÷(054-0.15)
=35.1÷(0.54-0.15)
=35.1÷0.39
=90
2.)20×2÷(19.5+7.5)
=40÷27
. . .
=1.481 (循環小數)
2008-10-03 17:58:03 補充:
第2題應該係咁:
2.)20×2÷(19.5+7.5)
=40÷27
. . .
=1.481 (循環小數)
2008-10-03 17:59:00 補充:
d小數點係481上面.
唔知點解整唔到.
SOR!!!
參考: 自已計
1.0.54x65÷(0.54-0.15) 直式
=35.1÷0.39
=90
20×2÷(19.5+7.5)
=40÷27
=1.48
收錄日期: 2021-04-13 16:06:55
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080929000051KK01176
檢視 Wayback Machine 備份