itzel66 itzel66
  • 30-12-2021
  • Mathematics
contestada

Identify the properties that are used to find each sum.
69 + 22 = (60 + 9) + (20 + 2)
= 60 + 20 + 9 + 2
= (60 + 20) + (9 + 2)
= 80 + 11
= 91

Respuesta :

sandydiazslp sandydiazslp
  • 03-01-2022

Answer:

Step-by-step explanation:

5

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