Expressions & Equations
Write an expression for:
“5 more than three times a number n.”
3n + 5
Find the mean: 4, 6, 8
6
What is the opposite of −8?
8
What is the area of rectangle whose length is 8 and base is 5?
40 square units
Simplify the ratio 8:12
2:3
A rectangular prism has a volume of 60 cubic inches.
Its length is 5 inches and width is 3 inches.
What is the height?
4 inches
Evaluate:
4(3 + 2) − 6
14
Find the median: 3, 9, 5, 7, 1
5
Order from least to greatest:
−3, 5, −1, 2
−3, −1, 2, 5
Find the volume
Length = 4
Width = 3
Height = 2
24 cubic units
1 notebook costs $3.
What is the cost of 4 notebooks?
$12
Solve:
x + 7 = 19
12
Find the mode: 2, 4, 4, 5, 6
4
Absolute value of −15
15
Find the area of triangle when:
the base is 10 inches and the height is 6 inches
30 square inches
or
30 inches square
Solve: 3/4 = x/20
15
Solve:
5x = 45
9
What is the probability of rolling a 3 (1–6 cube)
1/6
Evaluate: −4 + 9
5
Find the surface area of a rectangular prism when:
l=5 w= 4 h= 3
94 square units
120 miles in 3 hours.
What is the unit rate?
40 mph
Solve:
3(x − 4) = 18
10
In a bag with 3 red marbles, 2 blue marbles, and 5 green marbles, what is the probability of picking a blue marble?
1/5 or 20%
Evaluate: −6 − (−8)
2
What is the area of trapezoid whose bases are 10 and 6 and the height is 4?
32 square units
5 shirts cost $60.
Cost of 8 shirts?
$96
A rectangular garden has an area of 192 square feet. Its length is 4 feet longer than its width. Find the dimensions.
Width = 12 Length = 16