我买我买9个。个。还剩多少个？还剩多少个？13 9 = （个）（个）13 9 = （个）（个）13 9 = （个）（个）先减去先减去3个，个，再减去再减去6个。个。13 9 = （个）（个）从从10个里减个里减去去9个个13 9 = （个）（个）9加加（4）得得13，13减减9得得4。13 9 = （个）（个）你喜欢哪种方法？你喜欢哪种方法？4先减去先减去3个，个，再减去再减去6个。个。从从10个里减个里减去去9个个9加加（4）得得13，13减减9得得4。12 9 = 31. .先圈一圈，再计算。先圈一圈，再计算。16 9 = 7？个？个15 个个？根？根17 根根15 9 = 617 9 = 82. .9 2 = 1111 9 = 29 5 =1414 9 = 59 9 =1818 9 = 93. .129 = 3 4. .159 = 6 179 = 8 139 = 4 169 = 7 199 = 10 119 = 2 189 = 9 149 = 5 109 = 1 11 9 = 214 9 = 517 9 = 812 9 = 315 9 = 618 9 = 913 9 = 416 9 = 719 9 =105. .
