Cuneiform numbers were written using a combination of just two signs: a vertical wedge for '1' and a corner wedge for '10'. Handwriting varied as much in Old Babylonian times as it does now but the basic system of numbers is illustrated below.
Some common variants are
Occasionally, 19 was written as something like , meaning 20 - 1, although there are a huge number of minor variations in the way this sign is written.
Additionally, there were special signs for some common fractions. These were used when the numbers stood for metrological quantities, such as 1/2 gin.
The Chinese numeration system has characters that correspond to the numbers zero to nine. Unlike the number system we are used to, the Chinese system also has special characters to represent ten, a hundred, a thousand, ten thousand, as well as other multiples of ten.
The number 75 is written in Chinese using the characters 7, 10, and 5 or .
In Chinese you need to say that you have 7 tens first. 7 tens is how 70 is represented. Once you have the tens place in Chinese, you can finish writing the number with the character for 5. Chinese has no character for ones, but a character is used for the other place values. The character for ten is needed. You cannot write 75 as .
How would you write 893?
893 is written in Chinese as 8 hundreds, 9 tens, and 3.
This is how 893 is written: .
There is one more rule to writing numbers in Chinese. If a number ends in zeros, you do not need to include the zero character. However, if a zero digit does not end a number you need to include the zero character.
The number 890 is written as: (8 hundreds, 9 tens).
The number 809 is written as: (8 hundreds, zero, nine).
The zero character is included in the number, but you do not need to say 0 tens. Just the 0 character is fine!
The number 1004 is written as: (1 thousands, zero, four).
Since 1004 has a zero followed by a non-zero digit, the zero character is used. If a zero digit is followed by one or more zero digits, only one zero character is used.