Question

(2002 - 79 + 15) - (-79 + 15)

Answer 1

\(=2002-79+15+79-15\)

\(=2002\)

Answer 2

\(\text{(2002 - 79 + 15) - (-79 + 15)}=1936-64=1872\)

Answer 3

= 2002 - 79 + 15 + 79 - 15 

= 2002 + ( -79 + 79 ) + ( 15 - 15 )

= 2002 + 0 + 0 

= 2002