Changes

While there are special symbols for 72, 144 and 1728, numbers up to 144 can be pretty  comfortably written down, using the available twelve digits. One uses a vertical line called "staff" (a literal translation from Mandae) to sum the digits, thus producing a new digit. For instance, if one wishes to write down 14, one can write it as any combination of the two digits, be it 12+2 or 11+3 or 10+4. Different countries tend to adapt several common combinations, and the rule of thumb is two try to use the largest digit. So, in case of 14 it would be more common to represent it by doing 12+2. However, one can also simply put one number after the staff, which would mean that the number is summed by itself, thereby allowing to write down 14 as 7+7:

While there are special symbols for 72, 144 and 1728, numbers up to 144 can be pretty  comfortably written down, using the available twelve digits. One uses a vertical line called "staff" (a literal translation from Mandae) to sum the digits, thus producing a new digit. For instance, if one wishes to write down 14, one can write it as any combination of the two digits, be it 12+2 or 11+3 or 10+4. Different countries tend to adapt several common combinations, and the rule of thumb is two try to use the largest digit. So, in case of 14 it would be more common to represent it by doing 12+2. However, one can also simply put one number after the staff, which would mean that the number is summed by itself, thereby allowing to write down 14 as 7+7: