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Select all the equations that are true.

0+451=0
130+210=210+130
(127+80)+250=127+(80+250)
(123+57)+180=153+(87+180)
497+0=497

1 answer

130+210=210+130
(127+80)+250=127+(80+250)
(123+57)+180=153+(87+180)
497+0=497