试题详情
我会算。
13-9= 16-7= 12-6= 11-8= 17-9=
15-8= 16-9= 14-8= 15-6= 11-7=
18-9= 14-7= 12-9= 13-3= 11-2=
11-3= 12-8= 11-4= 15-9= 17-8=
知识点
参考答案
采纳过本试题的试卷
13-9= 16-7= 12-6= 11-8= 17-9=
15-8= 16-9= 14-8= 15-6= 11-7=
18-9= 14-7= 12-9= 13-3= 11-2=
11-3= 12-8= 11-4= 15-9= 17-8=