两位数加一位数(进位)、两位数减一位数(退位)共4套(共6页).doc

精选优质文档-倾情为你奉上两位数加一位数的进位加法和两位数减一位数的退位减法混合口算练习（一）班级 姓名 学号 所用时间 做对题数 专心-专注-专业90 - 9 =9 + 68 =77 - 8 =91 + 9 =2 + 38 =20 - 1 =48 + 3 =8 + 77 =40 - 3 =39 + 2 =62 - 4 =68 + 8 =23 - 6 =50 - 4 =3 + 49 =51 - 5 =54 + 7 =8 + 29 =74 - 7 =73 + 7 =33 - 5 =4 + 78 =75 - 8 =70 - 6 =5 + 65 =92 - 7 =89 + 4 =31 - 2 =94 - 9 =47 + 6 =80 - 7 =4 + 36 =68 +