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