Associative Property of Addition | MathHelp.com - Free Educational videos for Students in K-12 | Lumos Learning

Associative Property of Addition | MathHelp.com - Free Educational videos for Students in k-12


Associative Property of Addition | MathHelp.com - By MathHelp.com



Transcript
00:0-1 the problem . One plus parentheses two plus four equals
00:04 parentheses one plus two plus four demonstrates the associative property
00:10 of addition . Notice that the add ins are the
00:14 same on both sides of the problem . One plus
00:17 two plus four . However , on the left we
00:21 group the two plus four and on the right we
00:23 group the one plus two . The associative property of
00:27 addition states that when we add more than two numbers
00:31 , the grouping of the Adams does not change the
00:34 some . So let's look at how this problem demonstrates
00:37 the associative property of addition . On the left side
00:41 of the problem , the order of operations tells us
00:44 that we must simplify inside the parentheses first , so
00:48 two plus four is six and one plus six is
00:52 seven . And on the right side of the problem
00:55 we must also simplify inside the parentheses first . So
00:59 one plus 2 is three and three plus 4 is
01:04 seven , So we have seven equals 7 . Notice
01:08 that the sum is the same on both sides of
01:11 the problem , even though we grouped the Adams differently
01:16 . In general terms , the associative property of addition
01:19 can be written as a plus parentheses , B plus
01:25 C equals parentheses A plus B plus C , where
01:34 A , B and C are variables that represent any
01:39 number .
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