Question

-20+30-40=?

-55-25+75

123.1^2017.(-23)-27.

Answer 1

-20 + 30 - 40

= - 30

-55 - 25 + 75

= - 5

123.1 ^ 2017 . ( - 23 ) - 27

= - 6150

Answer 2

a,-20+30-40

=-60+30

=-30

b,-55-25+75

=20-25

=-5

c,123.1^2017.(-23)-27

=123.1.(-50)

=-6150

Answer 3

-20+30-40=-30

-55 - 25 + 75 = -5

123 . 1^2017 . (-23) - 27 =123.1.(-23)-27

                                   =123.(-23) - 27

                                   =-2829-27

                                   =-2856