3050的3倍是
[ ]
|
A.1950 |
B.9150 |
C.9250 |
D.9510 |
7乘56,积是
[ ]
|
A.63 |
B.352 |
C.392 |
D.386 |
450×(283-276)=
[ ]
|
A.3150 |
B.8200 |
C.2610 |
D.3480 |
竖式计算
1080×9=
[ ]
|
A.7920 |
B.9720 |
C.2970 |
D.9270 |
竖式计算
2100×5=
[ ]
|
A.10500 |
B.15000 |
C.50100 |
D.34800 |
竖式计算
305×6=
[ ]
|
A.8130 |
B.3180 |
C.1830 |
D.1380 |