p.2數學五題!!!急!!!

係1.96-5定係第1題係96-5??
我2個都計埋la..
1(a) 1.96-5 = -3.04
1(b) 96-5 = 91

2(a) 2.74-4 = -1.26
2(b) 74-4 = 70

3(a) 3.39-13 = -9.61
3(b) 39-13 = 26

4(a) 4.58-11 = -6.42
4(b) 58-11 = 47

5(a) 5.58-11 = -5.42
5(b) 58-11 = 47

1.(96-5=91)
2.(74-4=70)
3.(39-13=26)
4.(58-11=47)
5.(58-11=47)

1.91
2.70
3.26
4.47
5.38

1.96-5=91
2.74-4=70
3.39-13=26
4.58-11=47
5.68-30=38

1. 91
2. 70
3. 26
4. 47
5. 38

1.96-5= -3.05
2.74-4= -1.26
3.39-13= -9.61
4.58-11= -6.42
5.58-11= -5.42

1.9.
2.70
3.26
4.47
5.47

2007-10-07 18:53:22 補充：
1.91

2007-10-09 15:48:23 補充：
5.-24.32

1 系91
2 系70
3 系26
4 系47
5 系47
第4同第5題唔系一樣咩

1.9.
2.70
3.26
4.47
5.47

1.96-5= -6.96
2.74-4= -1.26
3.39-13= -9.61
4.58-11= -6.42
5.58-11= -5.42