Lesson 5: Numbers
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In this lesson, we will study Japanese numbers. Let's start with one through ten.  
1  10 rei or zero 
zero 
Note that several of the numbers have two pronunciations. Each pronunciation is used in specific situations. Sometimes either pronunciation is acceptable. 

11  19 The numbers from 11 to 19 are formed by putting the appropriate number after ten. Thus 11 is juu + ichi = juuichi. 

juuichi 
11 
20
 90
The numbers from 20 to 90 are formed by putting the appropriate number before ten. Thus 20 is ni + juu = nijuu. Think of it like saying 'two tens.' 

nijuu
sanjuu yonjuu gojuu rokujuu nanajuu hachijuu kyuujuu 
twenty thirty fourty (Not shijuu) fifty sixty seventy eighty ninety (Not kujuu) 


sanjuuni 
32 
100
 900
One hundred is hyaku. The numbers from 200 to 900 are formed like the numbers from 2090. Be careful as there are some exceptions in pronunciation. 

nihyaku sanbyaku yonhyaku gohyaku roppyaku nanahyaku happyaku kyuuhyaku 
200 
Note the exceptions in pronunciation for the numbers with asterisks.  
sen 
thousand ten thousand hundred thousand million ten million hundred million 