二年级一百以内退位加减法口算题及答案(二年级加减法计算题100道)

计算题列表67 - 33 = 71 - 23 = 31 - 28 = 75 - 52 = 36 + 35 = 45 - 43 = 41 - 33 = 73 - 40 = 34 + 20 = 6 + 3