Integer - ANSWER a whole number that includes all positive numbers, negative numbers,
and 0; does not include decimals or fractions
Natural number - ANSWER all positive or nonnegative integers, including 0; does not in-
clude negative numbers, decimals, or fractions
Rational number - ANSWER a number that can be expressed as a ratio or quotient of two
nonzero integers
How can rational numbers be expressed? - ANSWER As common fractions or decimals
Irrational numbers - ANSWER A number that cannot be expressed as an exact ratio of
two integers
What is a characteristic of an irrational number in decimal form? - ANSWER The decimal
will never terminate and never repeat
Define divisor and dividend - ANSWER Divsor = number doing the dividing Dividend =
number being divided
Homogeneous fraction - ANSWER fractions with the same denominator
common denominator - ANSWER number that is a multiple of the original denominators
1
, How do you multiply fractions? - ANSWER Multiply the numerators and denominators
horizontally and then simplify the remaining product
Reciprocal fraction - ANSWER a fraction with the numerator and denominator switched
How do you divide fractions? - ANSWER take the reciprocal of the second fraction (the
one doing the dividing) and multiply them together
What does a negative exponent indicate? - ANSWER A reciprocal fraction
Expanded form - ANSWER shows the place value of each digit; example 542 = 500 + 40 +
2, which is equal to 5 hundreds, 4 tens, and 2 ones
Prime numbers - ANSWER natural numbers greater than 1 that are divisible only by 1 and
themselves (2, 3, 5, 7, 11, 13, 17, 19...)
Composite numbers - ANSWER natural numbers greater than zero that are divisible by at
least one other number besides 1 and themselves; they have at least 3 factors, such as 9
having 1, 3, and 9
prime factorization - ANSWER writing the product of prime numbers that make up the
number
How do you perform prime factorization? - ANSWER Factor a known prime number into
the given number; repeat on all factors until no more factorization can take place
Greatest common divisor - ANSWER the largest positive integer that divides into the
numbers without producing a remainder
2
and 0; does not include decimals or fractions
Natural number - ANSWER all positive or nonnegative integers, including 0; does not in-
clude negative numbers, decimals, or fractions
Rational number - ANSWER a number that can be expressed as a ratio or quotient of two
nonzero integers
How can rational numbers be expressed? - ANSWER As common fractions or decimals
Irrational numbers - ANSWER A number that cannot be expressed as an exact ratio of
two integers
What is a characteristic of an irrational number in decimal form? - ANSWER The decimal
will never terminate and never repeat
Define divisor and dividend - ANSWER Divsor = number doing the dividing Dividend =
number being divided
Homogeneous fraction - ANSWER fractions with the same denominator
common denominator - ANSWER number that is a multiple of the original denominators
1
, How do you multiply fractions? - ANSWER Multiply the numerators and denominators
horizontally and then simplify the remaining product
Reciprocal fraction - ANSWER a fraction with the numerator and denominator switched
How do you divide fractions? - ANSWER take the reciprocal of the second fraction (the
one doing the dividing) and multiply them together
What does a negative exponent indicate? - ANSWER A reciprocal fraction
Expanded form - ANSWER shows the place value of each digit; example 542 = 500 + 40 +
2, which is equal to 5 hundreds, 4 tens, and 2 ones
Prime numbers - ANSWER natural numbers greater than 1 that are divisible only by 1 and
themselves (2, 3, 5, 7, 11, 13, 17, 19...)
Composite numbers - ANSWER natural numbers greater than zero that are divisible by at
least one other number besides 1 and themselves; they have at least 3 factors, such as 9
having 1, 3, and 9
prime factorization - ANSWER writing the product of prime numbers that make up the
number
How do you perform prime factorization? - ANSWER Factor a known prime number into
the given number; repeat on all factors until no more factorization can take place
Greatest common divisor - ANSWER the largest positive integer that divides into the
numbers without producing a remainder
2
