Question

((25-10). (4+16):2(+50)) .4=

Answer 1

((15×20):2(+50))×4
(300÷2 +50)×4
(150+50)×4
200×4
800

Answer 2

((25 - 10) . (4 + 16): 2 (+50)).4 = 
((15). (20):2 (+50)).4=
((15). 10 (+50)).4=
(150 (+50)).4=
150 + 50. 4=
150 + 200=
350