1) ( - 1) + ( - 3) = 2) ( + 5) – ( + 11) = 3) ( + 10) – ( + 6) = 4) ( - 7) + ( - 9) =5) ( + 7) – ( - 6) = 6) ( + 5) + ( - 9) = 7) ( - 4) – ( - 3) = 8 ) ( + 5) + ( + 3) =9) ( - 5) + ( - 2) = 10) ( - 6)?
1) ( - 1) + ( - 3) = 2) ( + 5) – ( + 11) = 3) ( + 10) – ( + 6) = 4) ( - 7) + ( - 9) = 5) ( + 7) – ( - 6) = 6) ( + 5) + ( - 9) = 7) ( - 4) – ( - 3) = 8 ) ( + 5) + ( + 3) = 9) ( - 5) + ( - 2) = 10) ( - 6) + ( - 2) + ( + 3) + ( - 4) – (3) =.