數學功課(2)快

Remember,把小數化為百分數,要把那小數x100%
e.g.
9.8--------9.8=9 4/5=49/5
=49/5x100%
=4900/5%
=980%

1.
0.03----------0.03=3/100
=3/100x100%
=300/100%
=3%

2.
0.9-----------0.9=9/10
=9/10x100%
=900/10%
=90%

3.
0.62--------0.62=62/100=31/50
=31/50x100%
=3100/50%
=62%

4.
0.27----------0.27=27/100
=27/100x100%
=2700/100%
=27%

5.
0.006----------0.006=6/1000=3/500
=3/500x100%
=300/500%
=3/5%
=0.6%

6.
0.0017----------0.0017=17/10000
=17/10000x100%
=1700/10000%
=17/100%
=0.17%

7.
0.0056----------0.0056=56/10000
=56/10000x100%
=5600/10000%
=56/100%
=14/25%
=0.56%

8.
13.45----------13.45=13 45/100=13 9/20=269/20
=269/20x100%
=26900/20%
=2690/2%
=1345%

9.
12.34----------12.34=12 34/100=12 17/50=617/50
=617/50x100%
=61700/50%
=6170/5%
=1234%

10.
34.62----------34.62=34 62/100=34 31/50=1731/50
=1731/50x100%
=173100/50%
=17310/5%
=3462%

11.
12.005----------12 5/1000=12 1/200=2401/200
=2401/200x100%
=240100/200%
=2401/2%
=1200.5%

12.
1.2----------1 2/10=1 1/5=6/5
=6/5x100%
=600/5%
=120%

13.
3.072----------3 72/1000=3 9/125=384/125
=384/125x100%
=38400/125%
=307.2%

14.
1.15-----------1 15/100=1 3/20=23/20
=23/20x100%
=2300/20%
=230/2%
=115%

15.
0.325----------325/1000=13/40
=13/40x100%
=1300/40%
=130/4%
=32.5%

16.
40.41----------40 41/100=4041/100
=4041/100x100%
=404100/100%
=4041%

17.
2.117----------2 117/1000=2117/1000
=2117/1000x100%
=211700/1000%
=2117/10%
=211.7%

18.
1.345----------13 345/1000=13 69/200=2669/200
=2669/200x100%
=266900/200%
=2669/2%
=134.5%

19.
14.001----------14 1/1000=14001/1000
=14001/1000x100%
=1400100/1000%
=14001/10%
=1400.1%

20.
0.01745----------1745/100000
=1745/100000x100%
=174500/100000%
=1745/1000%
=1.745%

1. 0.03=3%

2. 0.9=90%

3. 0.62=62%

4. 0.27=27%

5. 0.006=0.6%

6. 0.0017=0.17%

7. 0.0056=0.56%

8. 13.45=1345%

9. 12.34=1234%

10. 34.62=3462%

11. 12.005=1200.5%

12. 1.2=120%

13. 3.072=307.2%

14. 1.15=115%

15. 0.325=32.5%

16. 40.41=4041%

17. 2.117=211.7%

18. 1.345=134.5%

19. 14.001=1400.1%

20. 0.01745=1.745%

17的答案應該是211.7%才對
(其他都對)

其實小數化百分數只要把小數點向後兩個位就得了，冇數字就當是0

1. 0.03=3%
2. 0.9=90%
3. 0.62=62%
4. 0.27=27%
5. 0.006=0.6%
6. 0.0017=0.17%
7. 0.0056=0.56%
8. 13.45=1345%
9. 12.34=1234%
10. 34.62=3462%
11. 12.005=1200.5%
12. 1.2=120%
13. 3.072=307.2%
14. 1.15=115%
15. 0.325=32.5%
16. 40.41=4041%
17. 2.117=211.7%
18. 1.345=134.5%
19. 14.001=1400.1%
20. 0.01745=1.745%

1. 0.03=3%
2. 0.9=90%
3. 0.62=62%
4. 0.27=27%
5. 0.006=0.6%
6. 0.0017=0.17%
7. 0.0056=0.56%
8. 13.45=1345%
9. 12.34=1234%
10. 34.62=3462%
11. 12.005=1200.5%
12. 1.2=120%
13. 3.072=307.2%
14. 1.15=115%
15. 0.325=32.5%
16. 40.41=4041%
17. 2.117=2117%
18. 1.345=1345%
19. 14.001=1400.1%
20. 0.01745=1.745%