you shall take five shekels for each head, by the measure of the Sanctuary. A shekel has twenty obols
Other versions
King James Version
Thou shalt even take five shekels apiece by the poll, after the shekel of the sanctuary shalt thou take them: (the shekel is twenty gerahs:)English Standard Version
you shall take five shekels per head; you shall take them according to the shekel of the sanctuary (the shekel of twenty gerahs ),New International Version
collect five shekels for each one, according to the sanctuary shekel, which weighs twenty gerahs.