数学作业练习
逆向减法运算题 姓名： 评分： 48 - ( ) = 18 85 - ( ) = 17 85 - ( ) = 17 69 - ( ) = 18 69 - ( ) = 18 86 - ( ) = 27 90 - ( ) = 19 90 - ( ) = 19 91 - ( ) = 28 91 - ( ) = 28 42 - ( ) = 20 92 - ( ) = 38 92 - ( ) = 38 44 - ( ) = 5 44 - ( ) = 5 97 - ( ) = 46 46 - ( ) = 16 46 - ( ) = 16 家长签字： 2013年3月24日
