求數形
(1) 98,91,84,77,70
(2) 2,13,24,35,46
(3)1/3,1/9,1/27,1/81
/ = over
maths
2007-10-23 7:07 am
回答 (2)
2007-10-23 7:17 am
(1) 每個減7...
98
98-7=91
91-7=84
84-7=77
77-7=70
(2) 每個加11
2
2+11=13
13+11=24
24+11=35
35+11=46
(3) 每個除3
1/3
1/3除3 = 1/9
1/9除3 = 1/27
1/27除3 = 1/81
98
98-7=91
91-7=84
84-7=77
77-7=70
(2) 每個加11
2
2+11=13
13+11=24
24+11=35
35+11=46
(3) 每個除3
1/3
1/3除3 = 1/9
1/9除3 = 1/27
1/27除3 = 1/81
收錄日期: 2021-04-13 14:06:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071022000051KK04524