五年级数学计算、应用题专项训练(共2页).doc

数学专项训练（一）一、口算。（8分）3.61.2= 0.720.9= 2.613= 4.80.4= 4.44= 0.786=0.0540= 10.25= 4.50.07= 2.53.6= 7.20.4 = 7.8+4.4=9.88= 14= 0.990.01= 4.85+1.25=二、竖式计算，并验算。（12分）1.250.25= 7.7995= 75.60.36= 0.3961.2= 705.6= 2101.4=1.410.047= 126.150.44= 0.1951.3= 15.124.5= 5635= 14.42.5=三、商是循环小数的先用简便方法表示，再保留两位小数。9.411= 70.50.94= 0.91.1=