四年级小数加减法简便计算练习题(共2页).doc

四年级数学简便计算练习卷下面各题怎样算简便就怎样算。（1）小数加减法计算 18.519.030.97 326.4十68十3.6 15.5十26.5一20.4IO.27十0.48.27 24.6一3.98十5.46.02 64.3一18.75十15.7一11.255.272.860.661.63 13.354.682.65 73.81.6413.85.3666.868.661.34 36.83.96.1 324.90.9 25.48(9.40.52) 3.94.16.15.9 15.02-6.8-1.02324.90.9 146.5(2346.5)