有D小六唔識既數學問題...急!!!20點

A.17.2除4=4.3
B.0.048除1.2=0.04
C.
4.86除0.3=16.2
13.2除1.2=11
3.45除2.3=1.5
7.08除2.36=3
9.3除1.86=5
0.165除1.1=0.15
1.944除5.4=0.36
0.054除1.8=0.03

2008-09-05 17:19:35 補充：
A.17.2除0.4=43

A.43

B.0.04

C.1. 16.2

C.2. 11

C.3. 1.5

C.4. 3

C.5. 5

C.6. 0.15

C.7. 0.36

C.8 0.03
你喺小數除法可以將兩個小數的小數點同時推前至整數

例如:

17.2 / 0.4 = 172 / 4 = 43 及

0.048 / 1.2 = 48 / 120 = 0.4 及

4.86 / 0.3 = 486 / 30 =16.2

2008-09-10 16:27:02 補充：
例如:

17.2 / 0.4 = (17.2x10)/(0.4x10)=172 / 4 = 43 及

0.048 / 1.2 = (0.048x100)/(1.2x100)=48 / 120 = 0.4 及

4.86 / 0.3 =(4.86x100)/(0.3x100) = 486 / 30 =16.2

A.) 17.2 / 0.4 = 172 / 4 = 43

B.) 0.048 / 1.2 = 48 / 1200 = 1 / 25 = 0.04
C.) 4.86 / 0.3 = 486 / 30 = 16.2
13.2 / 1.2 = 132 / 12 = 11
3.45 / 2.3 = 345 / 230 = 3 / 2 = 1.5
7.08 / 2.36 = 708 / 236 = 3
9.3 / 1.86 = 930 / 186 = 5
0.165 / 1.1 = 165 / 1100 = 3 / 20 = 0.15
1.944 / 5.4 = 1944 / 5400 = 9 / 25 = 0.36
0.054 / 1.8 = 54 / 1800 = 3 / 100 = 0.03
呢課既技巧
係將有小數點既數字化為整野
再約簡 咁會比較容易約 ^^

A 17.2除0.4 = 43
B 0.048除1.2 = 0.04
C
4.86除0.3= 16.2
13.2除1.2= 11
3.45除2.3= 1.5
7.08除2.36= 3
9.3除1.86= 5
0.165除1.1= 0.15
1.944除5.4= 0.36
0.054除1.8= 0.03