446+56=502
446+(56+44)=(446+56)+44=502+44=546
446+(56-6)=(446+56)-6=502-6=496
(446 +44)+56=(446+56)+44=502+44=546
446+56=502
446+(56+44)=(446+56)+44=502+44=546
446+(56-6)=(446+56)-6=502-6=496
(446 +44)+56=(446+56)+44=502+44=546