Integers & Rational Numbers
What is the sum of -4 and 9?
5
If 3 pens cost $6, how much do 5 pens cost?
$10
Simplify: 3x+5−2x
x + 5 or 1x + 5
What is the sum of the angles in a triangle?
180 degrees
What is the probability of flipping heads on a coin?
1/2 or 50%
Simplify -3 + (-6)
Solve x/8 = 3/4
x = 6
Solve 2x = 14
x = 7
Find the area of a rectangle with length 8 and width 3.
24
A bag has 3 red, 5 blue, and 2 green marbles. What is the probability of picking a blue one?
5/10 or 50%
Order from least to greatest: −2,3,0,−5
-5, -2, 0, 3
Identify the constant of proportionality: y=7x
7
Solve: 3(x−4)=15
x = 9
What is the circumference of a circle with radius 4? (Use π≈3.14π)
C = 50.24
What is the mean of 5, 10, 15?
5 + 10 + 15 = 30
30/3 = 10
Mean is 10
A submarine is at -200 feet. It dives 150 feet deeper. Where is it now?
-350 feet
A car travels 180 miles in 3 hours. What is the unit rate?
60 miles per hour
Factor: x2+5x
x(x+5)
Find the volume of a rectangular prism: 3×4×5
What is the median of 3, 9, 1, 4, 7?
Step 1) Put them in order
1, 3, 4, 7, 9
The median is 4.
Convert −2/5 to a decimal.
-0.4
Is the relationship shown in the table proportional?
x y
4 12
5 15
8 32
NO
Write an expression for: "5 more than twice a number"
2x + 5
A triangle has angles 40° and 65°. Find the third angle.
75 degrees
What is the probability of rolling a number greater than 4 on a 6-sided die?
2/6