505
99... without using a calculator !
108
303
3x3=99+2=1111+3=14=14
505
99... without using a calculator !
105
1+3=4 4+5=9 9+.97=9.97 9.97+99=108.97
108
12.99 + 99 + 99 + 99 = 309.99
199 + 199 + 199 + 199 + 99 + 99 + 99 = 1192
5,050
303
3x3=99+2=1111+3=14=14
307
v2+36v+99 = (v+3)(v+33) when factored