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New Member
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Apr 17, 2008, 08:56 PM
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3rd grade math
(8+1)+5=8+(?+5)
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Jobs & Parenting Expert
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Apr 17, 2008, 09:03 PM
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First, what is 8+1+5?
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Junior Member
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Apr 18, 2008, 06:54 AM
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8+1+3=14
1+3+8=14
3+8+1=14
8+(1+3)=14
(8+1)+3=14
1+(3+8)=14
(1+3)+8=14
3+(8+1)=14
(3+8)+1=14
Notice that addition is commutative!
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Junior Member
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Sep 24, 2008, 03:33 PM
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(8+1)+5=8+(1+5)
8+1=9 1+5=6
9+5=14 14=6+8
14=14
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Junior Member
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Oct 4, 2009, 12:45 PM
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1 because of the associative property
(in alll addidion or all multiplication parenthesis
Do not matter)
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Uber Member
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Oct 5, 2009, 08:34 AM
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Wait mathwiz3502, multiplication including parenthesis does matter, in that sense:
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Uber Member
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Oct 8, 2009, 06:54 PM
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Adsfjlahsdflkab, considering that you are new here, with one post, which is a question and not an answer to anything... let me explain a little something before you negative your way right out of this place...
No one here can possibly know what a poster does or does not already understand. Because most of the time they don't say. They post a problem. There could be 4 steps to something and they've already solved the first 3 and we'd have no clue. So we just have to start somewhere. Wondergirl started in one place; iamthetman started in a different place. Neither of them actually did or did not solve anything... they just "started" some place.
If you brought your mind-reading cap with you, we'd appreciate if you'd share it with the rest of us.
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