1) 38 + ( - 40 ) + 24
= 62 + (-40)
= 62 - 40
= 22
2) - 28 - ( - 12 ) + ( - 35 ) + 24
= -4 - ( - 12) + ( - 35)
= -4 + 12 - 35
= - 39 + 12
= - 27
38 + ( - 40 ) + 24
= ( 38 + 24 ) + ( - 40 )
= 62 + ( - 40 )
= 62 - 40
= 22
- 28 - ( - 12 ) + ( - 35 ) + 24
= - ( 28 - 12 ) + - ( 35 - 24 )
= - 16 + ( - 11 )
= - 27
38 + ( - 40 ) + 24 = 22
- 28 - ( - 12 ) + ( - 35 ) + 24 = -27
38 + ( - 40 ) + 24
= ( 38 + 24 ) + ( - 40 )
= 62 + ( - 40 )
= + ( 62 - 40 )
= 22
38 + (-40) + 24
= (38 + 24) + (-40)
= 62 + (-40)
= 22
-28 - (-12)+(-35)+24
= -(28-12)+[-(35-24)]
= - 16 - ( -11)
= - 27