1+2-3ｘ4÷5=? and 5+4-3ｘ4÷5=?

1+2-3ｘ4÷5=

2007-02-17 10:57:59 補充：
1 2-3ｘ4÷5=3-12/5=3-2.4=0.65 4-3ｘ4÷5=9-12/5=9-2.4=6.6

2007-02-17 11:06:26 補充：
先乘除後加減呀!!!!!

聰明！不過為甚麼要補充回答？莫名奇妙！

1.1+2=3
3-3=0
0*4=0
0/5=0

2.5+4=9
9-3=6
6*4=24
24/5=4...4

唔知對不對架，希望可以幫到你喇！

2007-02-17 20:17:14 補充：
第二題是4.8Sorry, 錯了

1)
1+2-3X4/5
=3-(12/5)
=3-2.4
=0.6

2)
5+4-3X4/5
=9-(12/5)
=9-2.4
=6.6

1+2-3x4÷5
=1+2-(3x4)-5
=1+2-12÷5
=1+2-7
=7-1+2
=6+2
=8
--------------------------------
5+4-3x4÷5
=5-1x4÷5
=4x4÷5
=16÷5
=3...1

1.1+2-3ｘ4÷5
=1+2-12÷5
=1+2-2.4
=3-2.4
=0.6

2.5+4-3ｘ4÷5
=5+4-12÷5
=5+4-2.4
=9-2.4
=6.6

1+2-3x4÷5
=1+2-12÷5
=1+2-2.4
=3-2.4
=0.6

5+4-3x4÷5
=5+4-12÷5
=5+4-2.4
=9-2.4
=6.6

先乘除係加減
1+2-3x4/5
=1+2-12/5
=1+2-2.4
=0.6

5+4-3x4/5
=5+4-12/5
=5+4-2.4
=6.6

2007-02-17 11:00:52 補充：
對唔住我打錯字係"後"加減....

1.6,11.4

1+2-3X4/5
=3-(12/5)
=3-2.4
=0.6

5+4-3X4/5
=9-(12/5)
=9-2.4
=6.6

2007-02-17 10:59:44 補充：
信我啦!!!先乘除後加減呀!!!!!

1.1+2-3ｘ4÷5=0
2.5+4-3ｘ4÷5=3...9

1+2-3ｘ4÷5=5.4

5+4-3ｘ4÷5=11.4