asyed322
asyed322 asyed322
  • 22-04-2021
  • Mathematics
contestada

What is the sum?
Thank you!

What is the sum Thank you class=

Respuesta :

andyharb
andyharb andyharb
  • 22-04-2021

Answer:

50 is the sum

Step-by-step explanation:

-10+20=10

10+-40=-30

-30+80=50

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