Khmer spelling does not tell you the sound: the standard way of writing it in Latin letters turns the word said "orkun" into "araguna". Rather than teach that, press the speaker on any line: every one is spoken out loud.
Numbers
Counting & Numbers 2
Dates & Ordinals
Frequency
Numbers 3 & Math
Big Numbers
Shapes
Numbers & Amounts
More Khmer on this site
Khmer greetings and polite words · Days, months and time in Khmer · Khmer food and restaurant phrases · Khmer cooking and ingredient words · Khmer travel and direction phrases · Khmer shopping and money phrases · Khmer health, doctor and pharmacy phrases · Khmer hotel, renting and home phrases · Khmer work and office phrases · Khmer family and relationship words · Khmer conversation and small talk · Feelings and moods in Khmer · Colours in Khmer · Animals in Khmer · Weather and nature words in Khmer · Common Khmer verbs · Common Khmer adjectives · Khmer phone and internet words · Khmer bank, legal and paperwork words · Khmer school and study words · Khmer sport and fitness words · Khmer culture and festival words · Khmer words for places around town · Khmer words for going out and having fun
All 3,600 of them are on one page at Khmer phrases, all of them, and the course that teaches them is the free app at stkdwrld.com.