三升四暑假作业:小数加法和加减法简便计算,附答案

9.82+3.85+10.15=23.825.51+4.15+8.49=18.151.34+(4.48+4.66)=10.488.36+1.85+3.15=13.360.74+(2.04+2.26)=5.040.66+2.79+7.34=10.796.37+6.88+9.12=22.370.46+5.33+2.54=8.330.66+8.72+5.34=14.7210.09+4.59+2.41=17.099.94+(6.06+6.98)=22.9810.05+0.36+7.64=18.0513.52+(4.25+5.48)=23.25...