9的乘加乘减（2023-07-13）

9的乘加乘减（2023-07-13）：9×2+7= 2×9+10= 7×9-8= 9×7-4= 2×9+4= 9×1-8= 9×5-9= 7×9-6= 9×5-5= 1×9+4= 6×9+10= 9×5-3= 7×9-8= 9×1-2= 9×6+6= 3×9+9= 9×6-9= 5×9+3= 8×9+8= 9×7+2= 8×9+10= 9×7+6= 9×2-1= 5×9+5= 9×7+4= 5×9+7= 8×9-7= 9×8-6= 6×9+6= 9×6+8= 9×1+1= 6×9+10= 9×5-7= 1×9-7= 6×9+5= 9×8-2= 3×9-4= ...