That indeed adds up. In old Sanskrit texts numbers are spelled out in words, units place first then the higher powers of tens. Arabs took the system but it had never occurred to me what caused the switch in endian order.
Your comment made me dig out my BHS, since i had not counted in Hebrew since my Masters 20 years ago. Biblical Hebrew also spells out numbers, but in a slightly mixed order of the 2 systems: six and forty thousand and five of hundreds (Num 1:21), nine and fifty thousand and three of hundreds ( 1:23 ).