Posted by taylor on Sunday, January 8, 2012 at 9:36am.
bernie began building a model airlane on day 7 of his summer vacation and finished building it on day 65. he worked on the plane each day. how many days did it take?

math  taylor, Sunday, January 8, 2012 at 11:31am
Please help me i really need help before school help me

math  Reiny, Sunday, January 8, 2012 at 11:49am
Taylor, you are probably just taking 657 and get 58
, but that would not count day 7,
So there are 59 days.
Looks at a simpler case:
How many days from June 1 to june 5
obviously there are 5 days, but ...
when I take 51 I get only 4.
so that is why I had to add 1 to the subtraction answer.
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