Download 2.6-2.7 Review

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2.6 – 2.7 Review
Write the additive inverse (the opposite) for the following numbers:
1) -5
2) -5
3)
2
3
1
9
Write the multiplicative inverse (the reciprocal) for the following numbers:
4) -5
5) -5
6)
2
3
1
9
Write at least one number sentence to represent each of the following properties:
7) Associative Property
8) Identity Property of Addition
9) Inverse Property of Multiplication
10) Commutative Property
11) Inverse Property of Addition
12) For the following expression, identify the terms, like terms, coefficients and constant terms.
x + 9 - 3x - 2
Rewrite as addition: _______________________________
Terms:
Like terms:
Coefficients:
Constant terms:
13) For the following expression, identify the terms, like terms, coefficients and constant terms.
-x + 9 - 3y + 7 Rewrite as addition: _______________________________
Terms:
Like terms:
Coefficients:
Constant terms:
Simplify the following expressions using the distributive property and combining like terms as
necessary.
14) -(y – 19)
15) -7(x – 30
16) x(x - 2)
17) y(y + 4)
18) y(x - 5)
19) 3x(y + x)
20) -2(x + 3) -4y + 7
21) 4(z – 3) +4z -2y
22) 13x + 2(x – 4) + 11
23) 3a(a – 2) - 3a + 4a²
24) -2x(x – 7) + 3x – 9x²
25) 2(y - 10)
26) -4(x + 4)
27) -10(x – 10)
28) -(k – 3)
29) -3y – 2x + 9x – 4y
30) 2x - 2 – 6x + 9
31) 4v + w – v – 14v
32) 4(x – 8) + 3x – 3
33) xy(x - y) + 2x²y
34) 7xy²(2x + 3y) + 2x²y²