Number Sense
How many prime numbers are even?
Just one - the number 2!
What is the number on the bottom of the fraction called?
The denominator
Pentagon
What is the probability of getting 'heads' when flipping a coin? State as a fraction or a decimal.
1/2 or 0.5
Which axis runs vertically? The x or the y?
Y axis
What is the prime factorization of 20?
2x2x5
What is the lowest common denominator for the fractions 2/5 and 3/7?
The lowest common denominator is 5x7 = 35.
What is the formula for area of a circle?
A = pi * r2
What is the probability of rolling a 5 or a 6 on a six-sided die? State as a fraction or a decimal.
2/3 or 0.666...
Plot the point (2,-3) on a Cartesian plane.
**See board**
What is the greatest common factor of 18 and 24?
The greatest common factor is 6 (2x3).
What is the lowest common denominator for the fractions 5/12 and 6/15?
The lowest common denominator is 60 (2x2x3x5).
What is the formula for the area of a trapezoid?
A = (b1 + b2)/2 * h
What is the probability of drawing a heart from a full deck of cards? State as a fraction or a decimal.
1/4 or 0.25
What is the y-intercept of a line with the equation y = 4x - 3
(0,-3)
What is the least common multiple of 22 and 15?
The least common multiple is 330 (2x3x5x11)
Add the fractions 11/15 and 7/10 then state the final result in lowest terms.
Determine the area of a circle with diameter 14 cm. Round to one decimal place.
153.9 cm2
What is the probability of rolling odd numbers twice in a row on a six-sided die? State as a fraction or a decimal.
1/4 or 0.25
What is the slope of a line that passes through (1,0) and (0,2)?
m = -2
What is the largest two-digit prime number?
97
Multiply the fractions 14/24 x 18/21 and state the answer in lowest terms.
1/2
Determine the height of a triangle with a base length of 18 cm and a total area of 486 cm2.
What is the probability of rolling three fives in a row on a six-sided die? State as a fraction or a decimal.
1/216 or 0.004629...
For the line y = 3x - 4, what is the y value when x = 13?
y = 35