sum

Syntax:

Value Number  sum(Range source)

Description:

Adds up the numeric values in source.

Examples:

($d1:$d4) = sum($a:$c)
Before:
AB CD
1147
2258
3369
4
5
6
After:
AB CD
114712
225815
336918
4
5
6
($a1) = sum($b1:$d20)