324×(1000-995)=
[ ]
|
A.7095 |
B.4270 |
C.1620 |
D.3486 |
2005×3+1080=
[ ]
|
A.7095 |
B.4270 |
C.1620 |
D.3486 |
305×2×7=
[ ]
|
A.7095 |
B.4270 |
C.1620 |
D.3486 |
竖式计算
2009×3=
[ ]
|
A.6207 |
B.2607 |
C.6027 |
D.6072 |
竖式计算
380×6=
[ ]
|
A.8220 |
B.2280 |
C.2270 |
D.2260 |
加工一批零件,原计划50天完成任务,实际提前2天完成了任务,实际用了________天完成任务.
[ ]
|
A.34 |
B.52 |
C.84 |
D.48 |
竖式计算
1040×7=
[ ]
|
A.7280 |
B.7000 |
C.3480 |
D.3486 |