Question

(17.85+15.17)+(-120)

help me

Answer 1

(17.85 + 15.17) + (-120)

= 17.85 + 15.17 + (-120)

= 17.(85 + 15) + (-120)

= 17.100 + (-120)

= 1700 + (-120)

= 1580

Answer 2

(17.85+15.17)+(-120)

=((17.(85+15))+(-120)

=17.100+(-120)

=1700+(-120)

=1580

Answer 3

(17.85+15.17) +(-120)

 = (1445+255)-120

=1700-120

=1580