November 2022 1 9 Report
Inidica la propiedad que corresponde:
a) 354 + 1263 = 1263 + 354
b) 3120 + 0 = 3120
c) (158 + 345) + 720 = 158 (345 + 720)
d) 945 + 728 = 728 + 945
e) (730 + 270) + 471 = 730 + (270 + 471)

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