Vocabulary
This type of math problem has no equal sign.
Expression
Large blocks are sold in boxes of 15. Select the expressions that can represent the total number of blocks in b boxes of large blocks.
15b
b/15
15 - b
b + 15
15 x b
15b
15 x b
Simplify:
3(x+2)
3x + 6
What is the LCM of 3 and 8?
3: 3, 6, 9, 12, 15, 18, 21, 24
8: 8, 16, 24
LCM = 24
What is the GCF of 15 and 25?
15: 1, 3, 5, 15
25: 1, 5, 25
GCF = 5
This type of math problem has an equal sign
Equation
The same digits are used for the expression 53 and 35. Select the expression that compares the values.
5 x 3 = 3 x 5
5x5x5 < 3x3x3x3x3
3x3x3 < 5x5x5x5x5
5x5x5 < 3x3x3x3x3
4 (m + 9)
4m+36
Find the LCM of 4 and 6.
Multiples:
4: 4, 8, 12, 16, 20, 24…
6: 6, 12, 18, 24, 30…
LCM: 12
Find the GCF of 8 and 12.
Factors:
8: 1, 2, 4, 8
12: 1, 2, 3, 4, 6, 12
GCF: 4
What is the acronym for order of operations?
PEMDAS
Select all the expressions that are equivalent to 24c-8.
6c + 8 + 6c + 8
23c + 16 + c - 24
8(3c - 1)
12(12c - 2)
23c + 16 + c - 24
8(3c - 1)
20(20+2x)
400+40x
Find the LCM of 8 and 14.
Multiples:
8: 8, 16, 24, 32, 40, 48, 56…
14: 14, 28, 42, 56, 70…
LCM: 56
Find the GCF of 18 and 30.
Factors:
18: 1, 2, 3, 6, 9, 18
30: 1, 2, 3, 5, 6, 10, 15, 30
GCF: 6
Another word for the letters used in expressions and equations
Variable
Jaden earns $8.00 per window washed and $8.00 per yard clean up. Let w be the number of windows washed and let y be the number of yards cleaned up. Select all the expressions that could represent the total earned, E in dollars, by Jaden.
E= 8 (w + y)
E=8w + y
E= 8 + wy
E = w + 8y
E= 8w + 8y
E= 8 (w + y)
E= 8w + 8y
Evaluate 7r−15/s when r =3 and s=5
18
Find the LCM of 9, 12, and 15.
Multiples:
9: 9, 18, 27, 36, 45, 54, 63, 72…
12: 12, 24, 36, 48, 60, 72…
15: 15, 30, 45, 60, 75…
Common multiple: 36, 72…
LCM: 180
Find the GCF of 24, 36, and 60.
Factors:
24: 1, 2, 3, 4, 6, 8, 12, 24
36: 1, 2, 3, 4, 6, 9, 12, 18, 36
60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
Common factors: 1, 2, 3, 4, 6, 12
GCF: 12
What must be present to make something an algebraic expression?
Variable & an Operation
Select all the expressions that are equivalent to 12n-9.
5n + 4 + 5n + 4 + 4n
11n + 5 + n -14
7(4n - 5)
3(4n - 3)
3n + 32 - 18 + 9n
11n + 5 + n -14
3(4n - 3)
3n + 32 - 18 + 9n
Evaluate the expression 99 + 0.88m if m=70.
99 + (0.88 x 70)
99 + 61.6
160.6
Find the LCM of 6, 10, 15, and 18.
Multiples:
6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90…
10: 10, 20, 30, 40, 50, 60, 70, 80, 90…
15: 15, 30, 45, 60, 75, 90…
18: 18, 36, 54, 72, 90…
LCM: 90
Find the GCF of 42, 70, 98, and 154.
Factors:
42: 1, 2, 3, 6, 7, 14, 21, 42
70: 1, 2, 5, 7, 10, 14, 35, 70
98: 1, 2, 7, 14, 49, 98
154: 1, 2, 7, 11, 14, 22, 77, 154
Common factors: 1, 2, 7, 14
GCF: 14