Question

a) Add +750 to -300
b) Add -300 to -200​

Answer 1

Answer:

A.

+750-300

=(750-300)

=+450

B.

-300-300

We know that the sign convention is

+ + =+

- - = +

- +=-

+ - =-

Now, (-300)+(-200)

= (-300-200)

= - 500