Question

What is 43 base 5 -23 base 5=?

Answer 1

43 base 5 is

\[4 \times 5^1 + 3 \times 5^0 = 23\]

and

\[2 \times 5^1 + 3\times 5^0 = 13\]

so in a base 10 number system, its 23 - 13

so in base 5 its

43
- 23
------
20 base 5

which would be

\[2 \times 5^1 + 0 \times 5^0 = 10\]

hope it helps

Answer 2

a base 5 number system only has 5 digits

0, 1, 2, 3, 4