Question

List the first twenty counting numbers in base nine

Answer 1

`1_(10)=1_9`

`2_(10)=2_9`

`3_(10)=3_9`

`4_(10)=4_9`

`5_(10)=5_9`

`6_(10)=6_9`

`7_(10)=7_9`

`8_(10)=8_9`

`9_(10)=10_9`

`10_(10)=11_9`

`11_(10)=12_9`

`12_(10)=13_9`

`13_(10)=14_9`

`14_(10)=15_9`

`15_(10)=16_9`

`16_(10)=17_9`

`17_(10)=18_9`

`18_(10)=20_9`

`19_(10)=21_9`

`20_(10)=22_9`