三升四暑假作业:小数加法和加减法简便计算,附答案

家长可以每天让孩子做10道左右,一个月左右的量。小数加法简便运算(交换相加)12.43+(2.57+10.79)=25.793.04+(0.59+3.96)=7.594.36+(3.64+5.85)=13.851.82+(2.18+0.74)=4.740.53+4.19+18.47=23.1911.57+(2.58+1.43)=15.5812.38+(10.53+3.62)=26.533.21+5.04+16.79=25.049.96+1.96+0.04=11.963.73...