When +10 is the goal difference what is the goals for?
CREATE TABLE "second_division_final_table" (
  "position" real,
  "team" text,
  "played" real,
  "won" real,
  "drawn" real,
  "lost" real,
  "goals_for" real,
  "goals_against" real,
  "goal_difference" text,
  "points_1" text
);
SELECT "goals_for" FROM "second_division_final_table" WHERE "goal_difference"='+10';