9的乘加乘减（2023-09-07）

9的乘加乘减（2023-09-07）：7×9-7= 9×7+4= 6×9+7= 9×9+9= 9×8-6= 6×9+6= 9×6+8= 8×9+5= 4×9-7= 9×8-9= 4×9+10= 9×6+3= 9×7-1= 2×9-10= 9×7-3= 3×9-7= 4×9-2= 9×7+2= 8×9-10= 9×2-3= 9×7+6= 5×9-3= 9×3-8= 6×9+2= 7×9+9= 9×4+5= 6×9+7= 9×8-6= 9×1+3= 6×9+6= 9×2-6= 7×9-3= 2×9+1= 9×2+5= 1×9-2= 9×5+5= 9×4+9= 4×9-8= 9×3+3= 5×9-9= 1×9+2= 9×3+1= 8×9-6= 9×3-1= 9×1-4= 5×9-7= 9×5+10= 7×9+4= 1×9+3= 9×7-8= 3×9+8= 9×2-7= 9×7-4= 5×9-5...