Question

36+(-90)

-13.74+13.(5 mũ 2)+(-13)

Answer 1

a: =36-90=-54

b: =-13(74+1)+13*25

=-13*75+13*25

=-13*50=-650

Answer 2

\(36+\left(-90\right)=-54\)

\(-13.74+13.\left(5^2\right)+\left(-13\right)\)

\(=-962+13.25+\left(-13\right)\)

\(=-962+325+\left(-13\right)\)

\(=-650\)