口算．
| 3×5= |
80﹣3= |
30+49= |
6×3= |
99﹣4= |
| 23+8= |
4×3= |
7+55= |
3×1= |
6×2= |
| 9×6= |
34﹣6= |
5×5= |
4×2= |
4×5= |
| 46﹣6= |
6+5= |
60﹣7= |
6×5= |
67﹣9= |
| 5×6﹣6= |
24+7﹣8= |
6×6﹣9= |
19+5×2= |
．
粤公网安备 44130202000953号