Question

thực hien phép tính 

(-47) + 15 + (-20) - (-58) 

Answer 1

\(\left(-47\right)+15+\left(-20\right)-\left(-58\right)\)

\(=\left(-47+58\right)+\left(15-20\right)\)

\(=11+\left(-5\right)\)

\(=6\)

Vậy : \(\left(-47\right)+15+\left(-20\right)-\left(-58\right)=6\)

Answer 2

\(\left(-47\right)+15+\left(-20\right)-\left(-58\right)\)

= \(\left(-47\right)+15+\left(-20\right)+58\)

= \(-32+38\)

= \(6\)

Answer 3

\(\left(-47\right)+15+\left(-20\right)-\left(-58\right)\)

\(=\left(-47+58\right)+\left(15-20\right)\)

\(=11+\left(-5\right)\)

\(=6\)