试题详情
口算
| 0.25＋0.5＝ | 4.7－0.7＝ | 1.2×5＝ | 9÷0.3= | 0.25a+0.5a= |
| 7.8÷6＝ | 1.2×0.5= | 7-1.99= | 62.4-4= | 0.25a+0.05×2= |
知识点
参考答案
采纳过本试题的试卷