9的乘法口诀（2023-07-12）

9的乘法口诀（2023-07-12）：5×9= 9×6= 9×4= 2×9= 4×9= 9×2= 9×1= 6×9= 9×2= 9×5= 9×4= 9×9= 1×9= 8×9= 1×9= 9×2= 4×9= 9×2= 8×9= 9×6= 7×9= 9×3= 9×9= 3×9= 6×9= 9×5= 2×9= 9×7= 5×9= 9×4= 7×9= 4×9= 2×9= 1×9= 6×9= 9×3= 9×8= 9×6= 9×8= 9×2= 9×1= 9×8= 9×4= 8×9= 9×5= 9×9= 9×6= 9×1= 9×6= 9×8= 3×9= 6×9= 4×9= 7×9= 9×8= 2×9= 9×3= 9×6= 1×9= 9×7= 9×( )=81 ( )×9=72 9×( )=36 9×( )=81 ( )×9=63 ( )×9=18 ( )×9=9 ( )×9=63 9×( )=9 (...