Summer Math Packet Worksheet - Grayslake Middle School Page 6
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14Part II.
Simplifying expressions.
Integer rules
:
Multiplication/Division: Same signs = positive answer
Different signs = negative answer
−54
Ex:
‐6(5)
= ‐30
Ex.
= 27
−2
Absolute Value
:
Distance from 0
€
Ex:
Ex:
‐2 = 2
14 = 14
Combining Like Terms
:
Ex:
2n + 13m – 6m + 4n
2n + 7m + 4n
7m + 6n
Distributive Property:
a(b + c) = ab + ac
Ex:
4(x – 2)
4x ‐ 8
9.
a)
6(‐3)(‐2)
b)
6(‐3)‐2
c)
6‐3(‐2)
10.
‐4 + 3 • 5
11.
‐15 ‐ 20
12.
8 ‐ 11
13.
8m
‐ 3m
14.
‐5x – 6x
+ 7x
15.
3n + 4n + 7
2
2
2
€
€
€
16.
5m + 7y – (6m + 6y)
17.
81 − 121
18.
5( 2b + 4) – 3b
€
6
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