1. 根据算式填空。5615=840561.5=( )5.61.5=( )0.561.5=( )1542=30815.42=( )1.540.2=( )0.1540.02=( )2. A0.580.58 B0.430.43想想看A和B谁大?为什么?趣 味 探 索3. 用计算器计算前三道题,再直接填出后两道题的得数。你发现了什么规律?0.30.30.330.330.3330.3330.33330.33330.333330.33333参考答案:1. 30.8,0.308,0.0030884,8.4,0.842. AB3. 0.30.30.090.330.330.10890.3330.3330.1108890.33330.33330.111088890.333330.333330.1111088889