`#3107.101107`
`-564 + [(-724) + 564 + 224]`
`= -564 - 724 + 564 + 224`
`= (-564 + 564) + (-724 + 224)`
`= -500`
\(-564+\left[\left(-724\right)+564+224\right]\)
\(=-564-724+564+224\)
\(=\left(-564+564\right)+\left(-724+224\right)\)
\(=0-500=-500\)
=-564+(-724)+564+224
=(-724)+224
=-500