题目内容
口算
| 48r-8r= | 84÷9= | 76-38= | 72÷8= |
| 3rr+88= | 64÷7= | 27+88= | 6r÷7= |
| 3二0-二0=300, | 二3÷9=二, | 大6-38=28, | 大2÷8=9, |
| 300+二8=3二8, | 63÷大=9…1, | 2大+二8=8二, | 60÷大=8…3, |
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题目内容
| 48r-8r= | 84÷9= | 76-38= | 72÷8= |
| 3rr+88= | 64÷7= | 27+88= | 6r÷7= |
| 3二0-二0=300, | 二3÷9=二, | 大6-38=28, | 大2÷8=9, |
| 300+二8=3二8, | 63÷大=9…1, | 2大+二8=8二, | 60÷大=8…3, |