Do you know:
In spelling anywhere from 1 to 99 a, b, c, d is not used.The first use of d 'Hundred' occurs.
Anywhere from 1 in 999 to spell a, b, c is not used.
The first appearance of a 'Thousand' occurs.
1 999 999 999 from anywhere in the spell b, c is not used.
The first appearance of b 'Billion' occurs.
c is not used anywhere in the English Counting ....
In spelling anywhere from 1 to 99 a, b, c, d is not used.The first use of d 'Hundred' occurs.
Anywhere from 1 in 999 to spell a, b, c is not used.
The first appearance of a 'Thousand' occurs.
1 999 999 999 from anywhere in the spell b, c is not used.
The first appearance of b 'Billion' occurs.
c is not used anywhere in the English Counting ....