Question

- {150 ÷ 10 - 5. [4 . 5 ÷ 2] ÷ 5 - 8} + 12 ​

Answer 1

-{150÷10-5.17÷5-8}+12

-{150÷10-85÷5-8}+12

-15-17-8+12

-40+12

-52

Answer 2

-{150÷10-5•[4•5÷2]÷5-8}+12

[20÷2]

-{150÷10-5•10÷5-8}+12

-{15-5•10÷5-8}+12

-{15-50÷5-8}+12

-{150-10-8}+12

-{140-8}+12

-132+12

=-120