Question

295 –[245-(195-245)]

Answer 1

295-[245-(-50)]

295-295

0

Answer 2

295 –[245-(195-245)]

=295-245-195+245

=(295-195)+(245-245)

=100+0=100

Answer 3

295 -[245 - (195-245)]
=295 -[245 - (-50)
=295 - 295
= 0 
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Answer 4

295-[245-(195-245)]

=295-[245-(-50)]

=295-295

=0