小学数学必备数值

小学数学必备数值常用小数、分数的转化1/2 =0.5=50%1/3 ≈0.333 =33.3%2/3 ≈0.667=66.7%1/4 =0.25=25%3/4 =0.75=75%1/5 =0.2=20