懂视
3.97+2.86列式验算
2024-12-04 14:58:22
3.98+4.3=8.28
验算:
8.3-2.86=5.44
7.8÷0.13=60
验算:
0.79×25=19.75
0.082×0.15=0.0123
15.6÷24=0.65