1. Pronunciation: The decimal point should be read as "dot". For example, if you see a number 2.3456, it can be read as "two o'clock three four five six".
2. Writing: The decimal point should be written on the right side of the number, immediately after the number. For example, if you want to write 2.3456, you should write 6, 5, 4 and 3 from right to left.
3. Numbers in the middle: If there are numbers before and after the decimal point, then the decimal point should be written between these two numbers. For example, to write 2.34, from right to left, write 4 first, then 3, then 2.
4. Between integer and decimal: If there are integers before and after the decimal point, then the decimal point should be written between these two integers. For example, to write 2.34, from right to left, write 3 first, then 4, then 2.
5. In negative numbers: In negative numbers, the decimal point should be written to the left of the negative sign. For example, if you want to write -2.34, you should write-2, 3 and 4.
6. In fractions: In fractions, decimal points are usually used to separate numerator and denominator. For example, to write 1/2.3456, first write 1/ and then write 2.3456.