The number next to a variable in an expression...
Coefficient
GCF of...12 & 18
6
2x + 10
2(x + 5)
3 + 7 - 6
4
6c + 5 + 3c
9c + 5
The number by itself in an expression
Constant
GCF of...26 & 39
13
3d + 24
3(d + 8)
21 / 7 + 8
11
13r + 6 - 5r + 2
8r + 8
The letter used to represent an unknown amount in an expression
Variable
GCF of...16 & 48
16
21s - 49
7(3s - 7)
4 * 5 + (3 * 8)
44
7j - 8 + 12 + 10j
17j + 4
Mr. Smith has 42 inches of purple ribbon, 36 inches of green ribbon, and 18 inches of red ribbon. He needs to cut the ribbon into even pieces for an art project and does not want to have any left over. What is the greatest length of ribbon pieces that he could use?
BONUS: What is the total number of pieces Purple would have? Green? Red?
GCF: 6
Purple: 7 pieces
Green: 6 pieces
Red: 3 pieces
PEMDAS stands for...
Parentheses, exponents, multiplication, division, addition, subtraction
GCF of...21 & 35
7
33p + 22
11(3p + 2)
(48 / 6) + (4 * 1)
12
9z + 5t - 10 + 11t + 12 - 3z
6z + 16t + 2
A whole number with exactly two factors
Prime Number
GCF of 48 & 60
12
72c - 48
24(3c - 2)
(12 - 3)(4) + 6 - 2
40
-17b + 3m + 22 - 7 + 6b - 3m
-11b + 15