两位数加一位数(进位)、两位数减一位数(退位)共4套(总6页).doc

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 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 + 5 =35 - 6 =7 + 49 =65 -