The Fibonacci sequence is characterized by the fact that every number after the first two is the sum of the two preceding ones:
1, 1, 2, 3, 5, 8, 13...
So, I'll start with the first two numbers and you'll continue number by number.
un (1)
uno (1)
---
Other rules:
-Write the number as numerals too.
-You can also use the scientific notation if numbers get too big, but still write it as words as well as numerals.