en_tn_condensed/num/03/47.md

five shekels

A shekel is a unit of weight equal to about 11 grams. Alternate translation: "about 55 grams of silver" (See: rc://en/ta/man/jit/translate-bweight and rc://en/ta/man/jit/translate-bmoney)

for each skull

"for each of them" or "for each head"

You must use the shekel of the sanctuary as your standard weight

This means that the shekel must weight the same as those in the sanctuary. Alternate translation: "You must use the weight of the shekels in the sanctuary as your stand weight" (See: rc://en/ta/man/jit/figs-explicit)

twenty gerahs

"20 gerahs." A gerah is a unit of weight equal to about .57 kilograms. (See: rc://en/ta/man/jit/translate-numbers and rc://en/ta/man/jit/translate-bweight)