题目内容
350+230=
[ ]
|
A.620 |
B.550 |
|
C.580 |
D. 58 |
答案:C
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口算.
| 150×6= | 725-65= | 350×2= | 230×4= | 18×3= |
| 140×6= | 270×3= | 7×13= | 2×380= | 130×5= |
题目内容
350+230=
[ ]
|
A.620 |
B.550 |
|
C.580 |
D. 58 |
| 150×6= | 725-65= | 350×2= | 230×4= | 18×3= |
| 140×6= | 270×3= | 7×13= | 2×380= | 130×5= |