scheme arithmetic operations

The expression is wrapped in parenthesis. The arithmetic operator is the first character in the parenthesis
[code language=”text”]
(+ 1 2 3 4 5 6 7 8 9)
(- 10 2)
(* 3 3 3)
(/ 10 2)
[/code]

Output:
[code language=”text”]
45 8 27 5
[/code]