Evaluating Expressions
Writing Expressions
Simplifying Expressions
Using Familiar Formulas
Integers
100
x=5 O.5x
What is 2.5
100
4 more than a number.
What is x+4
100
3x + 4 - x
What is 2x + 4
100
Find the perimeter l=3c w=2c
What is 10c
100
-28 + (-21)
What is -49
200
s= 0.75 2+3s
What is 4.25
200
A number added to -7
What is -7 + x
200
6 - 2m - 7 + 3m
What is -1 + m or m-1
200
Find the perimeter l= x+10 w=x
What is 4x + 20
200
7 - (-15)
What is 105
300
y= -3 s= 0.75 -4y - 2s
What is 10.5
300
The difference of c squared and d
What is c2 - d
300
6(1 - j) + 2j
What is 6 - 4j
300
Find the perimeter & the area l= 2.7a w=12a
What is p= 29.4a a=32.4a2
300
Find the Mean -32, 64, -128
What is 33.33 or 33 1/3
400
x= 5 y= -3 5x + y ------- 2
What is 11
400
Error Analysis: Andrea says that "7 less than a number" is written as 7 - x. Correct this answer & explain.
What is x - 7 "less than" means take away 7 from the number
400
1.6r + 4(2 + 3.6r) - 5r
What is 11r + 8
400
What is the perimeter of a rectangle whose l=g and w=c
What is 2c + 2g
400
The value of the stock dropped 8 points. The value of a second stock dropped three times that amount. How many points did the second stock drop?
-8(-3) = 24 points
500
a + 2b + 3c a=11, b=12 and c=3
What is 44
500
A number increased by 3.2 less 5
What is n + 3.2 - 5
500
3z - 4 - 4z
What is -z - 4
500
What is the perimeter and area for a square whose side is "s" in length?
p = 2s + 2s = 4s a = s(s) = s2
500
Which expression has a positive product? Explain. A (1)(-15)(17)(4)(10) B (-8)(-75)(-2)(-9)(-3) C (-18)(5)(-3)(5)(1) D (12)(-7)(3)(-1)(-14)
C - there are an even amount of negative signs, so the answer will be positive
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