题目内容
| 直接写得数: 20×320﹦______; | 457×0﹦______; | 9800÷49﹦______; | (45+55)×7﹦______; |
| 4800÷60﹦______; | 3500-500﹦______; | 790-150﹦______; | 15×(20+2)﹦______; |
| 210×4﹦______; | 0÷300﹦______; | 40×800﹦______; | 45×20+15×20﹦______. |
| 20×320﹦6400; | 457×0﹦0; | 9800÷49﹦200; | (45+55)×7﹦700; |
| 4800÷60﹦80; | 3500-500﹦3000; | 790-150﹦640; | 15×(20+2)﹦330; |
| 210×4﹦840; | 0÷300﹦0; | 40×800﹦32000; | 45×20+15×20﹦1200 |
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