关注公众号回复:奥数答案
即可免费获得密码查看答案
口算。35-9= 82-3= 68-8=71-4= 18+3= 45+7= 27+9= 69+5= 69-60=57-30= 53+20= 42+50=
3930+9=3920+19=3989-50=3938+1=39
67 =67 =67 =67 =67
43 = 43 = 43 = 43 = 43
52 =52 =52 =52 =52
[ ]