20以内不进位加法不退位减法混合100题

班级姓名学号时间得分20以内不进位加法不退位减法混合1 + 15 = 15 - 5 = 15 + 2 = 12 - 1 = 15 - 5 = 14 + 5 = 6 + 11 = 12 + 4 = 5