註冊日: 2004-07-28 發表數: 143 University of Texas at Austin
Re: 倍數
若X是4『和』5的倍數那X必等於20的倍數,但是若X是4『或』5的倍數那X不一定等於20的倍數。
_________________ Atra esternī ono thelduin Mor'ranr līfa unin hjarta onr Un du evarīnya ono varda. May good fortune rule over you Peace live in your heart And the stars watch over you.
2004-09-11 11:26
kylin1004 Not too shy to talk
註冊日: 2004-08-24 發表數: 21
Re: 倍數
設1≦x≦1000,x屬於N,則 x是4或5的倍數共有____個
2004-09-11 19:54
kylin1004 Not too shy to talk
註冊日: 2004-08-24 發表數: 21
Re: 倍數
X是4和5倍數共有___個
2004-09-11 20:05
honnnman Not too shy to talk
註冊日: 2003-05-07 發表數: 28
Re: 倍數
1000/4 + 1000/5 -1000/20 =250 + 200 -50 =400
2004-09-12 15:41
九章數學出版社、九章數學基金會版權所有 本網頁各鍊結標題及鍊結內容歸原權利人所有 Copyright 2000 ~2004九章數學出版社、九章數學基金會 本網站內所有文字及資料版權均屬九章所有,未經書面同意之商業用途必究 This web site was made with XOOPS, a web portal system written in PHP. XOOPS is a free software released under the GNU/GPL license.