把百分数化成小数，小数化成百分数、（写出过程）

Question

2.1= 0.313= 18.5％= 1.07= 26.34％= 59.8％= 1.41= 0.69= 0.6％= 145％= 36％= 40％= 305％= 200％= 12.5％=

Answer 1

2.1x100%=210%
0.313x100%=31.3%
18.5%/100%=0.185
1.07x100%=107%
26.34%/100%=0.2634
59.8%/100%=0.598
1.41x100%=141%
0.69x100%=69%
0.6/%100%=0.006
145%/100%=1.45
36%/100%=0.36
40%/100%=0.40
305%/100%=3.05
200$/100%=2.00
12.5%/100%=0.125
即小数变百分数乘以100%（即先乘100再在后面加"%")
百分数变小数除以100%（即先除以100再去掉后面的"%")