60000题乘法口诀练习题(4至9以内各10000题)

6 × 2 =4 × 2 =2 × 3 =8 × 2 =2 × 5 =4 × 3 =8 × 2 =8 × 3 =2 × 4 =2 × 5 =4 × 5 =6 × 3 =2 × 3 =2 × 2 =2