Praxis Elementary Education Math Subtest
Questions with Accurate Solutions
Cardinal Numbers
A whole number that answers the question "How many?"
Ordinal Numbers
Numbers that describe position or order (first, second . . .)
Even Number
A whole number that is a multiple of 2. The ones digit is an even number (0,2,4,6,8)
Odd Number
A whole number ending with 1, 3, 5, 7, or 9 in the ones place; Not divisible by 2
Prime Number
A whole number greater than 1 that has only 2 factors, itself and 1; a number that can be
divided evenly only by 1 and itself
Integer
All whole numbers (both positive and negative) and zero
Composite Number
A whole number greater than 1 that has more than 2 factors
Greatest Common Factor
The largest factor that two or more numbers have in common
Least Common Multiple
The smallest multiple (other than zero) that two or more numbers have in common
Equivalent Number
, Numerical expressions that have the same value (i.e., fraction, decimal, and percent - 1/2 = 0.5
= 50%)
Scientific Notation
A method of writing or displaying numbers in terms of a decimal number between 1 and 10
multiplied by a power of 10
Order of Operations
The order in which operations in an expression to be evaluated are carried out. 1. parentheses
2. exponents 3. multiplication and division 4. addition and subtraction (PEMDAS="Please Excuse
My Dear Aunt Sally")
Algorithm
A set of clearly defined, logical steps that solve a problem
Pascal's Triangle
To build the triangle, start with "1" at the top, then continue placing numbers below it in a
triangular pattern.
Each number is the two numbers above it added together (except for the edges, which are all
"1").
1
11
121
1331
14641
Reciprocal Number
To take a number and flip it; to take a number and do the opposite of the number (3 --> 1/3)
Opposite Number
Questions with Accurate Solutions
Cardinal Numbers
A whole number that answers the question "How many?"
Ordinal Numbers
Numbers that describe position or order (first, second . . .)
Even Number
A whole number that is a multiple of 2. The ones digit is an even number (0,2,4,6,8)
Odd Number
A whole number ending with 1, 3, 5, 7, or 9 in the ones place; Not divisible by 2
Prime Number
A whole number greater than 1 that has only 2 factors, itself and 1; a number that can be
divided evenly only by 1 and itself
Integer
All whole numbers (both positive and negative) and zero
Composite Number
A whole number greater than 1 that has more than 2 factors
Greatest Common Factor
The largest factor that two or more numbers have in common
Least Common Multiple
The smallest multiple (other than zero) that two or more numbers have in common
Equivalent Number
, Numerical expressions that have the same value (i.e., fraction, decimal, and percent - 1/2 = 0.5
= 50%)
Scientific Notation
A method of writing or displaying numbers in terms of a decimal number between 1 and 10
multiplied by a power of 10
Order of Operations
The order in which operations in an expression to be evaluated are carried out. 1. parentheses
2. exponents 3. multiplication and division 4. addition and subtraction (PEMDAS="Please Excuse
My Dear Aunt Sally")
Algorithm
A set of clearly defined, logical steps that solve a problem
Pascal's Triangle
To build the triangle, start with "1" at the top, then continue placing numbers below it in a
triangular pattern.
Each number is the two numbers above it added together (except for the edges, which are all
"1").
1
11
121
1331
14641
Reciprocal Number
To take a number and flip it; to take a number and do the opposite of the number (3 --> 1/3)
Opposite Number
