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No Plagiarism!6Z7X7unZhg4BpyOha4mbposted on PENANA
主題:基準乘法(100為基準篇)8964 copyright protection196PENANACPrWQgc9WR 維尼
*學生實用性:★★☆8964 copyright protection196PENANAXmMfmgU3mx 維尼
*正常人實用性:★☆☆8964 copyright protection196PENANAgIrwFSrFJ5 維尼
*難易度:★★★ 來到驚人的三顆星!!!8964 copyright protection196PENANAVH5k0sl40K 維尼
條件:(符合才可使用)8964 copyright protection196PENANAoAV5DIZ74k 維尼
1.乘數和被乘數跟基準(100)十分接近,是否接近已自己好算為原則。8964 copyright protection196PENANAlN5FUKQbMM 維尼
8964 copyright protection196PENANAl9p3TUfKJ7 維尼
所謂的「差距」是指扣掉基準的值,在這篇中基準統一先定為100。8964 copyright protection196PENANAyWcy8bHDdb 維尼
以第一題為例,92-100=-8、96-100=-4。他們的差距分別就是-8和-4。(正負號請寫出來,非常重要!!!)8964 copyright protection196PENANAxGf4PxhSJV 維尼
接著進到口訣:8964 copyright protection196PENANAR03H4Jm3gS 維尼
交叉加減:可以用92-4=88或96-8=88,反正答案一定會一樣⮕填888964 copyright protection196PENANAuM7dDws2Be 維尼
差距相乘:(-8)X(-4)=32⮕填328964 copyright protection196PENANAgQLbbtr2jr 維尼
最後得到答案8832。大功告成!8964 copyright protection196PENANA13M05Jk9gE 維尼
200Please respect copyright.PENANAv7fR95sjGu
8964 copyright protection196PENANALDCALqSZEl 維尼
第二題原理也一樣,只是差距變成正的(101-100=1、114-100=14)8964 copyright protection196PENANAzHOOEnquC1 維尼
交叉加減:可以用101+14=115或114+1=115,反正答案一定會一樣⮕填1158964 copyright protection196PENANAF0jRg5nEyR 維尼
差距相乘:1X14=14⮕填148964 copyright protection196PENANAgNJKEX6oqI 維尼
最後得到答案11514。大功告成!8964 copyright protection196PENANAtaqh8kqqYJ 維尼
做下一題之前,先幫大家複習正負數乘法:8964 copyright protection196PENANAcRgXsLHroh 維尼
(+)X(+)=(+)、(-)X(-)=(+)、(+)X(-)=(-)、(-)X(+)=(-)8964 copyright protection196PENANAFzTuoQYKty 維尼
⮕正正得正、負負得正、正負得負8964 copyright protection196PENANAJPVHd7eBIm 維尼
8964 copyright protection196PENANAPBe0Zzf6Sb 維尼
他們的差距分別是-11和+3。(正負號請寫出來,非常重要!!!)8964 copyright protection196PENANARRvMgcaHxA 維尼
接著進到口訣:8964 copyright protection196PENANAHNWJsvR3Un 維尼
交叉加減:可以用89+3=92或103-11=92⮕填928964 copyright protection196PENANA1MUhnWM1Am 維尼
差距相乘:(-11)X3=-338964 copyright protection196PENANAUKpWIP9i2r 維尼
當差距相乘是負數時,這時在92後面補滿0,再-338964 copyright protection196PENANAxOPCkEaOpJ 維尼
得到答案9167。8964 copyright protection196PENANAMuWrVYpY3G 維尼
小試身手,前期不熟建議用紙筆幫忙,熟練後便可直接算了。記得正負號很重要。8964 copyright protection196PENANA56l4zGlZxF 維尼
答案在下方8964 copyright protection196PENANAsDNOWfNUi5 維尼
200Please respect copyright.PENANAeF1sWJtt9A
8964 copyright protection196PENANAU6yVgEFOwd 維尼
200Please respect copyright.PENANAsFJo6Ca6Zs
8964 copyright protection196PENANAisoBp895CU 維尼
200Please respect copyright.PENANALp462Ieo6x
8964 copyright protection196PENANAiKIVI1lJfL 維尼
200Please respect copyright.PENANAlfaHUJiulj
8964 copyright protection196PENANAsB3mbyS9u9 維尼
200Please respect copyright.PENANAt2rXMgZq0m
8964 copyright protection196PENANAh3fywWGm5p 維尼

8964 copyright protection196PENANAmrcvgUgNAa 維尼
第三題詳解:他們的差距分別是-5和+11。接著進到口訣:8964 copyright protection196PENANA6lEeuUEoUT 維尼
交叉加減:可以用95+11=106或111-5=106⮕填1068964 copyright protection196PENANAVJJ12ROtPZ 維尼
差距相乘:(-5)X11=-558964 copyright protection196PENANAtBQMsObP1v 維尼
當差距相乘是負數時,這時在106後面補滿0,再-558964 copyright protection196PENANArThKP58xCN 維尼
得到答案10545。8964 copyright protection196PENANA0baTYB0bjC 維尼
8964 copyright protection196PENANAZbXZXTQiOP 維尼
第四題詳解:他們的差距分別是+2和-13。接著進到口訣:8964 copyright protection196PENANA6uYM0AFHXY 維尼
交叉加減:可以用102-13=89或87+2=89⮕填898964 copyright protection196PENANARxtudmLkKV 維尼
差距相乘:2X(-13)=-268964 copyright protection196PENANAaFh9euTacE 維尼
當差距相乘是負數時,這時在89後面補滿0,再-268964 copyright protection196PENANAmqBi4Nbzza 維尼
得到答案8874。8964 copyright protection196PENANA95jXmAuv8p 維尼
你答對了嗎?若有不懂的歡迎在留言區詢問。8964 copyright protection196PENANAE8Dj0NJsuF 維尼
Q:我能自己訂基準嗎?不然範圍有點被侷限了8964 copyright protection196PENANA2aZvrBduYz 維尼
A:當然可以,只不過這又是下一篇的內容了8964 copyright protection196PENANAXJLcsBUF4w 維尼
216.73.216.150
ns216.73.216.150da2