四年级数学下册小数加减法混合运算专项练习一、口算。3.8+0.3=4.4-0.5=2.5-0.5=1.3+0.5=7.8-0.6=1.7-0.2=5.6-0.5=5.5-0.5=0.71-0.11=0.75+0.11=0.75+0.13=0.61+0.08=8.8+0.8=5.8+0.9=7.9-0.2=4.2-0.1=8.3-1.2=6.4-1.1=7.9-3.8=7.2-2.1=9-0.6=6.6-2.8=6+4.1=6.5+4.2=0.68+0.27=8.3+0.7=5.6+0.4=0.74-0.09=0.89-0.17=9-0.9=3.8+0.1=0.62+0.18=二、混合运算。0.76+0.45+3.25.3-0.62-0.3859.8-34+14.170.98-20.79+72.4185.43+37.57+43.889.38-7.04-1.4460-(8.72-0.49)81.5-(11.2+8)5.69+2.92+1.53四年级数学下册小数加减法混合运算专项练习一、口算。7.1+0.4=5.8+0.8=6.2+0.8=8.8-0.9=6.1+0.4=2.8-0.4=6+0.3=2.6+0.1=0.87-0.32=0.81-0.28=5.7+0.4=4.1-0.6=8.2-3.5=6.8-0.5=8-0.4=7.5-3.1=7.7-0.9=8.1+3=0.9-0.38=7.5+0.4=2-0.5=7-0.8=0.88-0.16=0.8+0.1=0.79+0.44=0.81+0.36=6.3-0.1=1-0.9=2.2+0.2=6.9-3.4=8.4+2.2=0.84-0.01=二、混合运算。0.86-0.46+1.87.4-0.83-1.1782.6-45.8+21.388.46-20.85+96.0469.02-10.34+45.926.85-4.49-1.3170-(6.92-0.52)91.5+(10.9+7.7)7.73+1.67+3.38四年级数学下册小数加减法混合运算专项练习一、口算。5.2-0.8=6.3+0.2=7.8-0.8=7.6+0.6=1.3-0.5=6.7+0.3=4.2-0.6=7.4-0.3=二、混合运算。0.63-0.17+6.764.87-25.93+26.540-(5.49+0.91)7.2+4.6=0.8-0.15=1.9-0.8=9+4.4=0.84+0.09=4.2-0.6=8.4-2=0.9-0.29=8.3-0.6=8.6-1.2=0.6+0.09=6.2-0.6=8.7+3.1=0.67+0.31=2.3+0.4=6.1+1.6=0.64+0.05=1.9+0.5=8.8+3.7=0.7-0.46=2.5-0.3=6-1.2=0.75+0.46=2.4-0.3=8.3-0.12-4.8891.2+47.6+39.766.81-45.75+14.524.1+2.36-1.2585.8-(28.1-9.7)8.43+2.65-2.51四年级数学下册小数加减法混合运算专项练习一、口算。6.3+0.4=8.6-0.3=8.3+0.4=7.2-0.4=6.9-0.5=7.8+0.1=7.9-0.6=7.5+0.3=0.77-0.32=0.89-0.2=0.74+0.08=0.72+0.42=2.2-0.8=4.5+0.1=7.5+0.1=7.6+0.8=6.6+1.1=6.4+1.8=6.1+2.1=6.8-2.1=6+4.5=7.5+3.9=8.7+3.8=7.9+0.5=0.69-0.3=3.3-0.5=3.2-0.5=6.2-0.9=2.5-0.6=0.78-0.11=0.84-0.46=0.75-0.32=二、...