Numbers 21-60
Firstly we will all start with numbers ending with zeroes(which makes it easier)
trente
quarante
cinquatre
soixante
Easy right? Now we focus on the units. Firstly there is a difference to numbers that end with 1 and the others.
The rest of the digits are easy. Just add the name of the digit to the tens unit
This repeats until 60.
Au revoir