一年级90以内加法减法口算混合练习题五三天天练精华版（7）带答案

42+34=73-11 =40+23 =89-69=45+35 =72-64=44+45=76-28=36+43 =72-50=38+41 =40+29 =87-12 =38+40=83-40=45+