问题
解答题
口算下面各题.
|
答案
20×13=260 | 22×40=880 | 40×11=440 | 43×20=860 | 90×60=5400 |
30×80=2400 | 9×110=990 | 10×56=560 | 30×33=990 | 30×60=1800 |
口算下面各题.
|
20×13=260 | 22×40=880 | 40×11=440 | 43×20=860 | 90×60=5400 |
30×80=2400 | 9×110=990 | 10×56=560 | 30×33=990 | 30×60=1800 |