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Lesson
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Operations |
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The Commutative
Property states:
In Addition
the order of the addends
does not change the sum
(answer).
In Multiplication
the order of the factors
does not change the product
(answer).

When
Adding:
3 + 4 = 4 + 3
7 =
7
5 + 7 = 7 + 5
12 = 12
2 + 9 = 9 + 2
11 = 11
When
Multiplying:
3 x 5 = 5 x 3
15 = 15
6 x 4 = 4 x 6
24 = 24
2 x 9 = 9 x 2
18 = 18
With
the Commutative Property,
there can be more than 2
Addends or Factors...
When Adding:
2 + 5 + 3 = 5
+ 3 + 2
7 + 3 = 8 + 2
10
= 10
7 + 5 + 4 = 4
+ 7 + 5
12 + 4 = 11 + 5
16 = 16
3 + 6 + 10 = 6
+ 10 + 3
9 + 10 = 16 + 3
19 = 19
When
Multiplying:
3 x 6 x 2 = 6
x 2 x 3
18 x 2 = 12 x 3
36
= 36
4 x 5 x 10 = 4
x 10 x 5
20 x 10 = 40 x 5
200 = 200
2 x 3 x 4 = 3
x 4 x 2
6 x 4 = 12 x 2
24 = 24
REMEMBER
:

Addends or Factors
can change order in a number sentence
and NOT change the answer
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