Vocabulary
What is a pronumeral?
8a + 15a + a + 9
24a + 9
21b - 6b
15b
-7w - 5 + 17w + 15
10w + 10
7x + 7
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What is the number out the front of a pronumeral?
Coefficient
5x + 35 + 4x + 7
9x + 42
12c - 6c - 30
6c - 30
19a - 6b - 17a - 3b + 9b - 2a
0
3x - 4x + x
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What is the difference between an expression and an equation?
An expression does not have an equals sign whereas an equation does
32 + 12t + 16t + 8
28t + 40
5z - 55 - 26 - z
4z - 81
-2f - 1f + 6 + 5f
2f + 6
4x + 7xy + x2
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What is a constant?
A number by itself (with no pronumeral)
75f + f + f + f2
77f + f2
-7d - 40 + 8d
d - 40
5r + 3q - 8q + r
6r - 5q
5x2 + 2x
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what are the terms in this expression?
4a - 7c + 18
4a, -7c, 18
m2 + 9m2 + m + 10m
10m2 + 11m
-15j - 18k - 20j - 18k
-35j - 36k
53t + 20r + 17 - 10t
20r + 43t + 17
10xy2 - 5xy2 + xy2
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