二年级第二学期 数学暑假作业 班级_ _ _ _ _ _ _ _ _ _ 学号_ _ _ _ _ _ _ _ 姓名_ _ _ _ _ _ _ _ _ _ 日期_ _ _ _ _ _ _ _ _ _ 8 1 0 -2 9 0 = 2 6 0 -2 4 0 = 9 1 0 -7 4 0 = 8 6 0 -1 9 0 = 8 4 0 -6 0 = 4 1 0 +2 7 0 = 8 0 +1 8 0 = 5 5 0 +4 4 0 = 9 3 0 +2 0 = 8 0 +7 0 = 6 0 0 -5 0 = 7 4 0 -6 5 0 = 1 6 0 -1 0 = 4 7 0 -7 0 = 5 0 0 -6 0 = 2 0 0 +9 0 0 = 2 0 0 +7 0 = 7 9 0 +9 0 = 3 5 0 -5 0 = 2 4 0 +3 6 0 = 1 3 0 +9 0 = 5 1 0 -3 5 0 = 4 4 0 +4 7 0 = 7 0 +5 0 0 = 6 0 +6 3 0 = 4 4 0 -1 0 = 1 0 0 +4 0 = 5 7 0 -7 0 = 3 0 +1 0 0 = 6 0 +2 0 = 9 0 +2 6 0 = 7 9 0 -9 0 = 5 0 +4 0 = 9 4 0 -8 0 = 1 1 0 -4 0 = 8 0 +6 4 0 = 8 5 0 -1 5 0 = 5 0 +2 0 = 3 7 0 -6 0 = 5 2 0 -7 0 = 2 0 +4 6 0 = 5 6 0 +3 0 = 6 9 0 -4 4 0 = 3 4 0 -3 0 = 7 4 0 -3 0 = 9 1 0 -8 0 0 = 1 3 0 -2 0 = 4 0 +3 1 0 = 6 3 0 -3 0 = 9 4 0 -5 0 = 2 7 0 -5 0 = 3 0 0 +7 0 = 6 0 0 +8 0 = 2 2 0 +6 2 0 = 6 9 0 -2 0 = 6 8 0 -6 0 = 5 9 0 -2 5 0 = 6 0 0 +6 0 = 2 3 0 -8 0 = 2 4 0 +4 0 = 8 0 +1 0 0 = 8 0 +9 0 = 7 0 +8 0 = 2 5 0 -4 0 = 9 5 0 -9 2 0 = 2 0 0 -9 0 = 9 9 0 -2 1 0 = 6 0 0 +7 0 = 2 2 0 +7 4 0 = 8 7 0 -5 7 0 = 8 4 0 -4 9 0 = 4 2 0 -9 0 = 1 8 0 -5 0 = 2 0 0 +5 0 = 3 0 +7 0 0 = 6 0 +8 8 0 = 7 7 0 -5 9 0 = 6 9 0 -9 0 = 6 7 0 -3 0 = 8 0 +2 0 = 5 4 0 +2 3 0 = 4 0 +7 5 0 = 4 0 0 -2 0 = 1 2 0 -4 0 = 5 8 0 -4 6 0 = 2...