EVALUATE EXPRESSIONS
WRITE EXPRESSIONS
Area/Surface Area
EXPRESSIONS VOCABULARY
LCM and GCF
100
Evaluate: 52 + 33
52 + 33
25 + 27
52
100
Write an expression that shows two more than the product of 3 and a number.
2 + 3n or 3n + 2
100
Find the Area
A = bh/2
A = 10 x 12 / 2 = 60 m2
100
What are the coefficients in 3x + 4y - 9
3 and 4
100
What is the GCF of 12 and 15?
1, 2, 3, 4, 6, 12
1, 3, 5, 15
GCF = 3
200
Evaluate: (5+3)2 / 2 -7
(5+3)2/2-7
(8)2/2-7
64/2-7
32-7
25
200
Write an expression that shows 6 less than the quotient of 9 and y
9÷y - 6
200
Find Surface Area
front/back = 10 x 10 x 2 = 200
top/bottom = 10 x 10 x 2 = 200
side/side = 10 x 10 x 2 = 200
Total SA = 600cm2
200
What is the constant term in 6x - 2 + 5y?
Constant = 2
200
What is the LCM of 9 and 12?
9, 18, 27, 36
12, 24, 36
LCM = 36
300
Evaluate if x = 3 and y = 4
2x + 3y - 5
2x + 3y – 5
2(3) + 3(4) – 5
6 + 12 – 5
13
300
Sarah has 80 stickers. She collects 4 more each time she visits a store. Write an expression for the number of stickers she has for "s" number of stores that she visits.
4s + 80
300
Find Area
A (triangle) = bh/2 (3 x 4)/2 = 6
A (rectangle) = lw 6 x 4
A = 6 + 6 + 24 = 36 cm2
300
What are the variables in 6x - 7h + p?
x, h, p
300
What is the LCM of 8 and 6?
8, 16, 24
6, 12, 18, 24
LCM = 24
400
Evaluate
4d3 + 5e2 / f - 3 where d = 2, e = 3 and f = 9
4 x 23 + 5 x 32 / 9 - 3
= 34
400
Sam has a barrel of apples. He adds 35 to the barrel. Then he shares the apples equally among 5 friends. Write an expression to represent the number of apples each friend receives.
(b + 35)/5
400
Find Surface Area
square = 5 x 5 = 25
triangle = bh/2 = 5 x 9 / 2 =22.5cm2
400
How many terms are in 4x - 3p + 2 - 5f?
4 terms
400
What is the GCF of 14, 21 and 49?
1, 2, 7, 14
1, 3, 7, 21
1, 7, 49
GCF = 7
500
Evaluate if r=5, s=2, t=12
(4r+ t2)/s-rs
(4(5)+ 122)/2-(5)(2)
(20+144)/2-(5)(2)
164/2-10
82 – 10
72
500
Lisa and her friends went to the movies. Each person bought a ticket for $8. All of the friends shared one large popcorn for $9. Write an expression to represent the amount paid by all friends.
8p + 9
500
What shape will this NET make?
square pyramid
500
What is the coefficient for p in the expression
5x - 7y + p
coefficient for p is 1
500
When do we use the GCF?
1. simplify fractions
2. placing the same amount of candy in each bag