Algebraic Expressions
Evaluate the expression when X = 20 and Y = 4
X divided by 5 X/5
4
WRITE THE PHRASE AS AN EXPRESSION
11 fewer than a number B
B - 11
SIMPLIFY THE EXPRESSION. WHAT PROPERTIES DID YOU USE.
10 + (2 + Y)
10 + (2 + Y) =
(10 + 2) + Y Assoc. Prop of Addition
12 + Y Add 10 and 2
2(X + 12)
2X + 24
5(N + 3) + 4N
9N + 15
Evaluate the expression when X = 20 and Y = 4
Y + X
24
WRITE THE PHRASE AS AN EXPRESSION
the product of a number D and 32
D * 32 or 32D
SIMPLIFY THE EXPRESSION. WHAT PROPERTIES DID YOU USE.
(21 + B) + 1
(21 + B) + 1 =
(B + 21) +1 Comm. Prop. of Addition
B + (21 + 1) Assoc. Prop. of Addition
B + 22 Add 21 and 1
11(B - 3)
11B - 33
T + 2 + 6T
7T + 2
Evaluate the expression when X = 20 and Y = 4
8Y - X
12
WRITE THE PHRASE AS AN EXPRESSION
18 added to a number N
N + 18 or 18 + N
SIMPLIFY THE EXPRESSION. WHAT PROPERTIES DID YOU USE.
3(7X)
3(7X)
(3 * 7)X Assoc. Prop of Multiplication
21X Multiply the 3 and 7
8(S - 1)
8S - 8
3Z + 4 + 5Z - 9
8Z - 5
Evaluate A/B (A divided by B) when A = 48
and B = 8
6
WRITE THE PHRASE AS AN EXPRESSION
a number T decreased by 17
T - 17
SIMPLIFY THE EXPRESSION. WHAT PROPERTIES DID YOU USE.
5.3 + (W + 1.2)
5.3 + (W + 1.2) =
5.3 + (1.2 + W) Comm. Prop of Addition
(5.3 + 1.2) + W Assoc. Prop of Addition
6.5 + W Add 5.3 and 1.2
6(6 + Y)
36 + 6Y
3(2 + 5R) + 11
15R + 17
In a video game, you scare P game points and B triple bonus points. An expression for your score is P + 3B. What is your score when you earn 245 game points and 20 triple bonus points?
305
Your basketball team scored 4 fewer than twice as many points as the other team.
a. Write an expression for the number of points your team scored.
b. The other team scored 24 points. How many points did your team score?
a. 2P - 4
b. 44 points
The expression 7 + 3X + 4 represents the perimeter of a triangle. Simplify the expression.
3X + 11
A family of four goes to salon for haircuts. The cost of each haircut is $13. Use the Distributive Property and mental math to find the product 4 X 13 for the total cost.
(4 X 10) + (4 X 3) =
(40) + (12) =
52
4Y - 2 - 2Y + 7
2Y + 5