SSAT MIDDLE LEVEL MATH FORMULAS
circumference of circle - answer2πr
Area of circle - answerπr²
What do you do when you see "in terms of"? - answer Plug in numbers for letters (same
for question and answers)
What does PEMDAS stand for? - answer Parenthesis, Exponents, Multiplication,
Division, Addition, Subtraction
What is the acronym for orders of operations? – answer PEMDAS
How do add fractions? - answer Find common denominator and add numerators.
How do you multiply fractions? - answer Multiply straight across
How do you divide fractions? - answer Keep, Change, Flip! Then multiply fractions!
Surface area of a rectangular solid - answer2(lw+lh+wh)
How many degrees are in a circle? - answer360 degrees
How many degrees are in a triangle? - answer180 degrees
How many degrees are in a line? - answer180 degrees
How many degrees are in a four-sided figure? - answer360 degrees
What is a rational number? - answer A number that can be written as a fraction
What is a prime number? - answer a number that is only divisible by itself and 1
What is the first prime number? - answer2
What is an irrational number? - answer A number that can be expressed as a decimal
but not a fraction
What is an integer? - answer A WHOLE number (not a fraction or decimal!) that can be
positive or negative
, What is a consecutive integer? - answerA number that follows another in order (2, 3, 4
or 101, 102, 103)
Average formula - answeraverage = sum of terms / number of terms
Real numbers - answernumbers that can be found on the number line including zero
factors - answerNumbers that are multiplied together to get a product
What are the factors of 16? - answer1, 2, 4, 8, 16
What is a multiple of a number? - answerThe result of multiplying a number by an
integer.
What are the multiples of 2? - answer2, 4, 6, 8, 10, 12, 14, 16..........
GCF - answerThe greatest number that is a factor of each of two or more numbers.
(Usually a small number)
What is the GCF of 12 and 18? - answer6
LCM - answerLeast Common Multiple (usually a large number)
LCM of 12 and 15? - answer60
Area of a square? - answerA = s² or LxW
Area of a triangle? - answerA= 1/2 bh or bxH/2
Surface area of cube? - answer6s²
Volume of a cube - answerLxWxH
What decimal is 1/4? - answer.25
What decimal is 1/2? - answer.50 or .5
What decimal is 1/3? - answer.333
What decimal is 2/5? - answer.40
What decimal is 4/5? - answer.80
What decimal is 1/5? - answer.20
What decimal is 2/3? - answer.66
circumference of circle - answer2πr
Area of circle - answerπr²
What do you do when you see "in terms of"? - answer Plug in numbers for letters (same
for question and answers)
What does PEMDAS stand for? - answer Parenthesis, Exponents, Multiplication,
Division, Addition, Subtraction
What is the acronym for orders of operations? – answer PEMDAS
How do add fractions? - answer Find common denominator and add numerators.
How do you multiply fractions? - answer Multiply straight across
How do you divide fractions? - answer Keep, Change, Flip! Then multiply fractions!
Surface area of a rectangular solid - answer2(lw+lh+wh)
How many degrees are in a circle? - answer360 degrees
How many degrees are in a triangle? - answer180 degrees
How many degrees are in a line? - answer180 degrees
How many degrees are in a four-sided figure? - answer360 degrees
What is a rational number? - answer A number that can be written as a fraction
What is a prime number? - answer a number that is only divisible by itself and 1
What is the first prime number? - answer2
What is an irrational number? - answer A number that can be expressed as a decimal
but not a fraction
What is an integer? - answer A WHOLE number (not a fraction or decimal!) that can be
positive or negative
, What is a consecutive integer? - answerA number that follows another in order (2, 3, 4
or 101, 102, 103)
Average formula - answeraverage = sum of terms / number of terms
Real numbers - answernumbers that can be found on the number line including zero
factors - answerNumbers that are multiplied together to get a product
What are the factors of 16? - answer1, 2, 4, 8, 16
What is a multiple of a number? - answerThe result of multiplying a number by an
integer.
What are the multiples of 2? - answer2, 4, 6, 8, 10, 12, 14, 16..........
GCF - answerThe greatest number that is a factor of each of two or more numbers.
(Usually a small number)
What is the GCF of 12 and 18? - answer6
LCM - answerLeast Common Multiple (usually a large number)
LCM of 12 and 15? - answer60
Area of a square? - answerA = s² or LxW
Area of a triangle? - answerA= 1/2 bh or bxH/2
Surface area of cube? - answer6s²
Volume of a cube - answerLxWxH
What decimal is 1/4? - answer.25
What decimal is 1/2? - answer.50 or .5
What decimal is 1/3? - answer.333
What decimal is 2/5? - answer.40
What decimal is 4/5? - answer.80
What decimal is 1/5? - answer.20
What decimal is 2/3? - answer.66
