Numbers
What is the smallest prime number?
2
Solve for x: 2x+3=11.
4
What is the sum of the interior angles of a triangle?
180 degrees
What is the mean of the following numbers: 3, 5, 7?
5
What is the probability of rolling a 3 on a standard six-sided die?
1/6
What is the least common multiple of 12 and 8?
24
x2+5x+6
Calculate the area of a rectangle with length 8 cm and width 5 cm.
40 cm2
Define the median in a set of numbers.
order the set from least to greatest. The median is the middle number.
If you flip a coin, what is the probability of getting heads?
1/2
What is the greatest common factor (GCF) of 24 and 36?
12
What is the slope of the line represented by the equation y=4x+1?
m=4
What is the Pythagorean theorem?
a2+b2=c2
What does it mean if a data set has a mode of 4?
This means that 4 is the most commonly occurring number.
What is the probability of drawing a red card from a standard deck of cards?
1/2
How do you express 3/4 as a decimal?
0.75
Factor the quadratic expression x2+5x+6.
(x+2)(x+3)
How do you find the circumference of a circle with a radius of 7 cm?
c = 2 x pi x r
c=2 x pi x 7cm
c=14pi cm
Calculate the range of the following data set: 12, 15, 20, 22, 30.
Range is the difference between the min and max. The range for this data set is 18.
If you have a bag with 3 red, 2 blue, and 5 green marbles, what is the probability of picking a blue marble?
1/5
If a number is multiplied by 3 and then decreased by 5, which expression represents this operation?
3a-5
If f(x)=2x2−3x+4, what is f(2)?
f(2)=6
If two angles of a triangle are 45° and 55°, what is the measure of the third angle?
80 degrees
What is a standard deviation a measure of?
A measure of how dispersed the data is from the mean.
If two dice are rolled, what is the probability that the sum is 7?
1/6