试题详情
算一算
13-7= | 30+40= | 62-4= | 58-40= | 30+8+5= |
8+7= | 19-8= | 60+8= | 23+30= | 31-5-20= |
45+5= | 54-8= | 78-4= | 40+60= | 12-6+8= |
90-60= | 6+28= | 18-9= | 66-7= | 48-7-9= |
20+46= | 64-6= | 6+20= | 50+3= | 80-(50-30)= |
知识点
参考答案
采纳过本试题的试卷