99999/2+9999/2+999/2+99/2+9/2=
99999/2+9999/2+999/2+99/2+9/2=
(99999+9999+999+99+9)乘1\2
99^2=9801 999^2=998001 9999^2=99980001 99999^2=9999800001
谁知道9 1/7+99 2/7+999 3/7+9999 4/7+99999 5/7+999999 6/7=
9+99+999+9999+9999+99999=?
9+99+999+9999+99999 = =
9+99+999+9999+99999=?
99的2次方=9801;999的2次方=998001;9999的2次方=9998001;99999的2次方=999980
9999+999+99+9 9999×2222+3333×3334 10000-1-2-3-4-...-80 1+2+3
9999999+999999+99999+9999+999+99+9=
9+99+999+9999+99999+999999+9999999+99999999=?
9*99*999*9999*99999*999999=?3Q