NYSTCE Childhood Math 222 Exam
Actual Questions and Answers 2026
Integer -
correct answer ✅set of whole positive and negative numbers
includes zero. Does not include fractions, decimals, or mixed
numbers
Prime number -
correct answer ✅whole number greater than one, only has two
factors (itself and 1)
Composite number -
correct answer ✅whole number greater than one, has more than
two factors
Even number -
correct answer ✅any integer that can be divided by evenly divided
by 2 without leaving a remainder
Odd number -
correct answer ✅any integer that cannot be evenly divided by 2
,NYSTCE Childhood Math 222 Exam
Actual Questions and Answers 2026
Decimal number -
correct answer ✅number that uses decimal point to show the part
of the number that is less than one
Decimal point -
correct answer ✅symbol used to separate the ones place from the
tenths place in decimals or dollars from cents in currency
Decimal place -
correct answer ✅position of number to the right of the decimal
point
Base 10 number system -
correct answer ✅uses two different digits
Rational numbers -
correct answer ✅includes all integers, decimals, and fractions. All
terminating/repeating decimals
Irrational numbers -
correct answer ✅cannot be written as fractions or decimals
,NYSTCE Childhood Math 222 Exam
Actual Questions and Answers 2026
because number of decimal places is infinite and no recurring
patterns exist
Real numbers -
correct answer ✅set of all rational and irrational numbers
Factors -
correct answer ✅numbers that are multiplied together to obtain a
product
Common factor -
correct answer ✅Number that divides exactly into two or more
other numbers
Prime factor -
correct answer ✅A factor that is also a prime number
Greatest common factor (GCF) -
correct answer ✅largest number that is a factor of two or more
numbers
, NYSTCE Childhood Math 222 Exam
Actual Questions and Answers 2026
Least common multiple (LCM) -
correct answer ✅smallest number that is a multiple of two or
more numbers
Rounding -
correct answer ✅approximation of a number by increasing or
decreasing it to the nearest possible exact value of the cutoff digit,
5 or higher round up, 4 or lower round down
Addition -
correct answer ✅increases value of one quantity by the value of
the another quantity
Subtraction -
correct answer ✅opposite of addition, decreases value of one
quantity by value of another quantity
Multiplication -
correct answer ✅repeated addition, one number tells you how
many times to add the other number to itself
Actual Questions and Answers 2026
Integer -
correct answer ✅set of whole positive and negative numbers
includes zero. Does not include fractions, decimals, or mixed
numbers
Prime number -
correct answer ✅whole number greater than one, only has two
factors (itself and 1)
Composite number -
correct answer ✅whole number greater than one, has more than
two factors
Even number -
correct answer ✅any integer that can be divided by evenly divided
by 2 without leaving a remainder
Odd number -
correct answer ✅any integer that cannot be evenly divided by 2
,NYSTCE Childhood Math 222 Exam
Actual Questions and Answers 2026
Decimal number -
correct answer ✅number that uses decimal point to show the part
of the number that is less than one
Decimal point -
correct answer ✅symbol used to separate the ones place from the
tenths place in decimals or dollars from cents in currency
Decimal place -
correct answer ✅position of number to the right of the decimal
point
Base 10 number system -
correct answer ✅uses two different digits
Rational numbers -
correct answer ✅includes all integers, decimals, and fractions. All
terminating/repeating decimals
Irrational numbers -
correct answer ✅cannot be written as fractions or decimals
,NYSTCE Childhood Math 222 Exam
Actual Questions and Answers 2026
because number of decimal places is infinite and no recurring
patterns exist
Real numbers -
correct answer ✅set of all rational and irrational numbers
Factors -
correct answer ✅numbers that are multiplied together to obtain a
product
Common factor -
correct answer ✅Number that divides exactly into two or more
other numbers
Prime factor -
correct answer ✅A factor that is also a prime number
Greatest common factor (GCF) -
correct answer ✅largest number that is a factor of two or more
numbers
, NYSTCE Childhood Math 222 Exam
Actual Questions and Answers 2026
Least common multiple (LCM) -
correct answer ✅smallest number that is a multiple of two or
more numbers
Rounding -
correct answer ✅approximation of a number by increasing or
decreasing it to the nearest possible exact value of the cutoff digit,
5 or higher round up, 4 or lower round down
Addition -
correct answer ✅increases value of one quantity by the value of
the another quantity
Subtraction -
correct answer ✅opposite of addition, decreases value of one
quantity by value of another quantity
Multiplication -
correct answer ✅repeated addition, one number tells you how
many times to add the other number to itself
