Jazzhgbdv
Jazzhgbdv
01-10-2015
Mathematics
contestada
What is the answer to 89-39
Respuesta :
TSO
TSO
01-10-2015
[tex]89 - 39 = (80 +9) - (30+9) = 80 - 30 + 9 - 9 = 80 - 30 = \boxed{50}[/tex]
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Leader
Leader
01-10-2015
89 - 39 = 50
The 9s in the ones digit 9 - 9 = 0
8 - 3 = 5
So 50
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