Question

a) -24 + 13 + 6 + 24

b ) 28 + ( -6 ) - 50 + 6

c) -27 + ( -789 ) + 9 -73 ) + 789

d) ( -23 ) + ( -17 ) + 50 + ( -10 )

Answer 1

a) -24 + 13 + 6 + 24

= 24 + (-24) + 13 +6

= 0+13+6

= 19

b ) 28 + ( -6 ) - 50 + 6

= 6 + (-6 ) + 28 -50

= 0 +28 - 50

= 28 -50

= -22

Answer 2

a) ( -24 + 24) + 13 + 6 = 19

b) 28 - 50 + ( -6 + 6) = -22

c) ( -27 - 73 ) + (-789 + 789) + 9 = -91

d) {[ -23 + ( -17) ] - 10} + 50 = -50 + 50 = 0