小四的數學題目??? - 學習

By Irma
at 2014-06-19T23:03
at 2014-06-19T23:03
Table of Contents
※ 引述《minnerchen (咪呢陳)》之銘言:
: 有一題小學四年級老師出的題目~~
: 某數被50除 餘2 ,被27除 餘3 ,
: 請問該數的最小值為多少???
: 答案是1002
50的有A堆, 27的有B堆
(50*A)+2 = (27*B)+3
(50*A)-1 = (27*B) ---- 個位數一定是9
B=7, 17, 27, 37, 47…
(27*B)+1後, 又可以被50整除 (很好算出來)
B=37, (27*37)+3=1002
--
: 有一題小學四年級老師出的題目~~
: 某數被50除 餘2 ,被27除 餘3 ,
: 請問該數的最小值為多少???
: 答案是1002
50的有A堆, 27的有B堆
(50*A)+2 = (27*B)+3
(50*A)-1 = (27*B) ---- 個位數一定是9
B=7, 17, 27, 37, 47…
(27*B)+1後, 又可以被50整除 (很好算出來)
B=37, (27*37)+3=1002
--
Tags:
學習
All Comments

By Regina
at 2014-06-22T15:10
at 2014-06-22T15:10

By Erin
at 2014-06-24T18:21
at 2014-06-24T18:21

By Rebecca
at 2014-06-28T14:41
at 2014-06-28T14:41
Related Posts
小四的數學題目???

By Ina
at 2014-06-19T00:01
at 2014-06-19T00:01
有人用過quizlet嗎?

By Ula
at 2014-06-17T16:24
at 2014-06-17T16:24
怎麼戒除狂上網>_<

By Elizabeth
at 2014-06-11T12:23
at 2014-06-11T12:23
今年升國三 一些讀書問題

By Quintina
at 2014-06-10T00:53
at 2014-06-10T00:53
今年升國三 一些讀書問題

By Mary
at 2014-06-08T16:30
at 2014-06-08T16:30