thebookofeli thebookofeli
  • 21-09-2019
  • Mathematics
contestada

What property is being used 9+(1+19)=9+_=

Respuesta :

salma1148
salma1148 salma1148
  • 21-09-2019

Answer:

20 or(1+19)

(3+17)

(19.5+.5)

there are infinity of choices

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