3 years ago

What is the answer to 89-39

2 answers:

8 0

$89 - 39 = (80 +9) - (30+9) = 80 - 30 + 9 - 9 = 80 - 30 = \boxed{50}$

8 0

89 - 39 = 50

The 9s in the ones digit 9 - 9 = 0
8 - 3 = 5

So 50

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