简算.
×3+×5+×10 | 999×7+111×7 |
97× | (+++)×2002 |
8.5×+0.75×5+6.5÷1 | ++++. |
直接写得数.
34×5= | 89×0= | 400÷3= | 270÷3= | 101×5= |
89-7×3= | 67-19= | 8×9-9= | 25×(79-75)= |
×3+×5+×10 | 999×7+111×7 |
97× | (+++)×2002 |
8.5×+0.75×5+6.5÷1 | ++++. |
34×5= | 89×0= | 400÷3= | 270÷3= | 101×5= |
89-7×3= | 67-19= | 8×9-9= | 25×(79-75)= |