1 . 56- (-23) =56+23 =79
2. 45- 67 = -22
3. -34-59 =-93
4. 81+(-41)=40
( + 56 ) - ( - 23 ) = 79
45 - 67 = -22
- 34 - 59 = - 93
81 + ( - 41 ) = 40
1. ( + 56 ) - ( - 23 ) = 56 + 23 = 79
2. 45 - 67 = -22
3. - 34 - 59 = - ( 34 + 59 ) = - 93
4. 81 + ( - 41 ) = 81 - 41 =40