18 is the numerical value of the Hebrew word for "life"
The question is a little unclear. If this means "Why would someone give you 36 DOLLARS for a wedding gift", then the answer may lie in numerology. In some languages such as Hebrew, there are no special characters for numbers; the same symbols that are letters of the alphabet are used for numbers. In Hebrew, the number "18" uses the same characters as the Hebrew word "l'chaim", or "life". It's common among Jews to give gifts that are 18 dollars or multiples of 18. So if a Jew gives you a gift of $36, he is wishing you "two lives", or "long life". As a wedding gift, this might mean "a life for both of you".
Traditionally, money was given in multiples of 18. Whether that would be 18 cents, 18 dollars, or 18 billion would depend on the giver, the recipient, and the occassion. I have seen many gifts of $72 at bar mitzvahs, for example.
36- 54 dollars would be good because multiples of 18 are considered lucky in Jewish tradition
All multiples of 36 are multiples of 18.
It's a Jewish tradition to give monetary gifts in multiples of 18.
18 and all the multiples of 18.
Multiples of $18 is the tradition.
The multiples of 18 in ascending order are 12345678
Multiples are just numbers that can be multiplied together to find the given number. So: Multiples of 9: 1,3,9 Multiples of 18: 1,2,3,6,9,18 Common Multiples of 9 & 18: 1,3,9
The set of multiples of 18.
The common multiples of 18 and 24 are 72 and 144.
18, 36, 54, 72, and 90 = the first five multiples of 18