试题详情
口算
63-7= 48-3= 12-7= 5+43= 17-8=
56-8= 11-8= 4+45= 14-7= 66-5=
16-9= 49+3= 25+20= 12-8= 17+60=
92-40= 72-60= 7+40= 60+3= 5+27=
知识点
参考答案
采纳过本试题的试卷
63-7= 48-3= 12-7= 5+43= 17-8=
56-8= 11-8= 4+45= 14-7= 66-5=
16-9= 49+3= 25+20= 12-8= 17+60=
92-40= 72-60= 7+40= 60+3= 5+27=