Download Math Worksheet #12 Topic: Properties

Math Worksheet #12
Topic: Properties
Video A:
Name _____________________________________
Commutative Property
Example:
3+7 = 7+3
Example:
5*8 = 8*5
Complete the following using the Commutative Property: (Do not give a final answer.)
Video B:
1) 10 + 6 = _Below_
3) 12 + 3 =
2) 4 * 5 =
4)
5-6) The Commutative Property
15 * 4 =
does not work for ___ or ___.
Associative Property
Example: 2 + (3 + y) = (2 + 3) + y = 5 + y
Video C:
4 + (6 + x) = __Below___
9)
8(
8)
7(5x) =
10)
15(
2
x) =
3
Distributive Property
Example:
11)
6(3x + 2y) = 6(3x) + 6(2y) = 18x + 12y
10(4x + 3y) = __Below___
1
2
12) 4( x +
Video D:
1
m) =
4
7)
1
y) =
4
13)
1
(3x + 12) =
6
14)
20(
1
1
x + y) =
10
2
Combine Similar Terms
Example:
3x + 5 x = (3 + 5)x = 8x
15)
12 y + 4 y = __Below__
17)
9n + 3n + 5 =
16)
21a + 14a =
18)
4x + 7 + 2x =
Answers:
1)______ 3) ______ 5) _________ 7) _____ 9) _____ 11) _______ 13) _______ 15) _______ 17) ______
2) _____ 4) ______ 6) _________ 8) _____ 10) _____ 12) _______ 14) _______ 16) _______ 18) ______
Score = ___ / 18