Question

-13 + (-69) + 57 - (-89) - (53 + (-49)) =

• A. $50$
• B. $60$
• C. $70$
• D. $80$

Answer 1

The correct option is B $60$

-13 + (-69) + 57 - (-89) - (53 + (-49))

= -13 - 69 + 57 + 89 - (53 - 49)

= -13 - 69 + 57 + 89 - 53 + 49

First, take all the negative terms and then take all the positive terms and add them,

= (-13 - 69 - 53) + (57 + 89 + 49)

= -135 + 195

= 60