You do not, but you can add zeros to pad the decimal to show the hundred thousandths place.
One Hundred Thousand (Is this your homework?)
$40.000,-
100,000 or 100,000. if you must show the decimal point.
1,45,0001,45,0001,45,0001,45,000
1,500
350,000
0.004
six hundred six thousand, one hundred seven
"20 hundred" would never show up in a proper reading of numbers,because "20 hundred" is the same as "two thousand", and it wouldbe read that way.So, "20 thousand 20 hundred" is the same thing as "22 thousand",and it's written22,000
0.264
Three million, eight hundred nine thousand, five hundred sixty-two.