Jazzhgbdv Jazzhgbdv
  • 01-10-2015
  • Mathematics
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What is the answer to 89-39

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TSO
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 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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