Question

help for my holiday home wark

Answer 1

a) (-8) - 9 - (-30)

  =  (-8) - 9 + 30

  =   -8 - 9 + 30 

  =   -17 + 30 

  =  13 


b) 60 - (-40) - (-8)

=  60 + 40 + 8 

=  100 + 8 

=  108



c) (-13) + 32 - 8 - 1

= 19 - 8 - 1 

=  11 - 1 

= 10 



-a + -b = +c ( Sign of greater number)

+a - (-b)  = +c  (sign of greater number)

-a + b = -c (sign of greater number)

a + b = c (sign o greater number)

Hope it helps !