Answer:

Step-by-step explanation:
Given : Number 209.106
To find : Write number in expanded form?
Solution :
Expanded form is defined as expression number by the value of each digit in the number.
The exception of zeroes, the larger the number, the longer its expanded form.
According to value system,
Hundred Tens ones Tenths Hundredths Thousandths
2 0 9 1 0 6
i.e. 
or 
Thus it is the required expanded form.