9+9+9+9+9+9+9=63
9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 - 5678 = -5606
99 = 9*9*9*9*9*9*9*9*9 (nine lots of 9) = 387,420,489
9*9/9 = 9 or 9+9-9 = 9
54 That is 9*6 not 9*9*9*9*9*9 which is 96 = 531441
1152
yes 9+ 9 9 9 9 + 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 +
2.250388e+167
90
It's 9*9*9*9*9*9*9*9*9 or 387,420,489
9 + (9/9) = 10 (99/9) - (9/9) = 10 [ (9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9) / 9 ] + (9/9) = 10
9+9+9+9+9+9+9=63
9 + 9 + 9 + 9 + 9 + 9 = 54
9 nine 9 9 9 9 9 9 9 9 9
9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 - 5678 = -5606
4782969
99 = 9*9*9*9*9*9*9*9*9 (nine lots of 9) = 387,420,489