２１; 3/7N=6+9
23; 7.2=7/10D+0.2
數學功課----------６年級方式程問題．．煩死＊●＊
2007-05-15 2:51 am
回答 (5)
2007-05-15 3:04 am
✔ 最佳答案
=,= 我5年級!!=.=3/7N=6+9
3/7N=15
3/7N*7=15*7
3N=105
N=105/3
N=35
7.2=7/10D+0.2
7.2-0.2=7/10D+0.2-0.2
7=7/10D
7*10=7/10D*10
70=7D
7=D
D=7
ku!ku!ku!
2007-05-14 19:06:01 補充：
sorry , this is 3/7N=6 93/7N=153/7Nx7=15x73N=105N=105/3N=357.2=7/10D 0.27.2-0.2=7/10D 0.2-0.27=7/10D7x10=7/10Dx1070=7D7=DD=7
參考: me
2007-05-16 12:59 am
3/7N=6 9
3/7N=15
3/7Nx7=15x7
3N=105
N=105/3
N=35
7.2=7/10D 0.2
7.2-0.2=7/10D 0.2-0.2
7=7/10D
7x10=7/10Dx10
70=7D
7=D
D=7
3/7N=15
3/7Nx7=15x7
3N=105
N=105/3
N=35
7.2=7/10D 0.2
7.2-0.2=7/10D 0.2-0.2
7=7/10D
7x10=7/10Dx10
70=7D
7=D
D=7
參考: i am F1
2007-05-15 5:39 am
２１; 3/7N=6+9
3/7N=15
3/7N*7/3=15*7/3
N=5*7
N=35
.'.N=35
23; 7.2=7/10D+0.2
7.2-0.2=7/10D+0.2-0.2
7=7/10D
7*10/7=7/10D*10/7
10=D
.'.D=10
3/7N=15
3/7N*7/3=15*7/3
N=5*7
N=35
.'.N=35
23; 7.2=7/10D+0.2
7.2-0.2=7/10D+0.2-0.2
7=7/10D
7*10/7=7/10D*10/7
10=D
.'.D=10
參考: me
2007-05-15 3:57 am
3/7N=6+9
N=35
7.2=7/10D+0.2
D=10
N=35
7.2=7/10D+0.2
D=10
2007-05-15 2:58 am
3/7N=6+9
3/7N=15
3/7N*7=15*7
3N=105
N=105/3
N=35
7.2=7/10D+0.2
7.2-0.2=7/10D+0.2-0.2
7=7/10D
7*10=7/10D*10
70=7D
7=D
D=7
3/7N=15
3/7N*7=15*7
3N=105
N=105/3
N=35
7.2=7/10D+0.2
7.2-0.2=7/10D+0.2-0.2
7=7/10D
7*10=7/10D*10
70=7D
7=D
D=7
收錄日期: 2021-04-13 16:29:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070514000051KK03376