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精选优质文档-倾情为你奉上（一）凑十法练习9 + 9 = 9 + 8 = 9 + 7 =9 + 6 = 9 + 5 = 9 + 4 =9 + 3 = 9 + 2 = 8 + 9 =8 + 8 = 8 + 7 = 8 + 6 =8 + 5 = 8 + 4 = 8 + 3 =7 + 9 = 7 + 8 = 7 + 7 =7 + 6 = 7 + 5 = 7 + 4 =6 + 9 = 6 + 8 = 6 + 7 =6 + 6 = 6 + 5 = 5 + 9 = 5 + 8 = 5 + 7 = 5 + 6 =9 + 4 = 8 + 4 = 4 + 7 =3 + 9 = 3 + 8 = 2 + 9 = （二）破十法练习题18 9 = 17 9 = 16 9 = 15 9 = 14 9 = 13 9 = 12 9 = 11 9 = 17 8 = 16 8 = 15- 8 = 148 = 13 8 = 12 8 = 11 8 = 16 7 = 157 = 147 = 13 7 = 12 7 = 11 -7 = 15 6 = 14 - 6 = 136 = 126 = 11 6 = 145 = 135 = 125 = 115 = 13-4= 124= 11-4= 12-3= 11-3= 11-4= 专心-专注-专业
