GED MATH CERTIFICATION PREPARATION
GUIDE
◉ Scientific notation.
Answer: a number written as the product of a number between 1
and 10 and a power of 10
◉ Standard deviation.
Answer: a measure of how spread out numbers are
◉ Table.
Answer: an organized chart or list of numbers
◉ Unit rate.
Answer: describes how many units of the first type of quantity
corresponds to one unit of the second type of quantity. Some
common unit rates are miles (or kilometers) per hour, cost per item,
earnings per week, etc.
◉ Ratio.
Answer: comparison between two numbers. Separated by a colon
(:), the word "to", or may be written in fraction form.
,◉ Proportion.
Answer: an equation that shows that two ratios are equal. Numbers
may change in value, but will keep the same proportional
relationship to one another.
◉ Cross Products.
Answer: The product of the numbers which are diagonal from one
another in a proportion equation. Should be equal on both sides.
◉ Common denominator.
Answer: for a set of fractions, a number into which each
denominator can divide evenly
◉ Denominator.
Answer: the bottom number in a fraction
◉ Difference.
Answer: the answer to a subtraction problem
◉ Digit.
Answer: one of the ten number symbols. The digits are 0, 1, 2, 3, 4, 5,
6, 7, 8, and 9.
, ◉ Equation.
Answer: a statement that two amounts are equal
◉ Estimate.
Answer: as a noun: an approximate value.
as a verb: to find an approximate value.
◉ Fraction.
Answer: a part of a whole
◉ Greatest common factor.
Answer: the greatest factor that divides two numbers
◉ Improper fraction.
Answer: a fraction in which the numerator is greater than or equal
to the denominator
◉ Least common multiple.
Answer: the smallest positive number that is a multiple of two or
more numbers.
GUIDE
◉ Scientific notation.
Answer: a number written as the product of a number between 1
and 10 and a power of 10
◉ Standard deviation.
Answer: a measure of how spread out numbers are
◉ Table.
Answer: an organized chart or list of numbers
◉ Unit rate.
Answer: describes how many units of the first type of quantity
corresponds to one unit of the second type of quantity. Some
common unit rates are miles (or kilometers) per hour, cost per item,
earnings per week, etc.
◉ Ratio.
Answer: comparison between two numbers. Separated by a colon
(:), the word "to", or may be written in fraction form.
,◉ Proportion.
Answer: an equation that shows that two ratios are equal. Numbers
may change in value, but will keep the same proportional
relationship to one another.
◉ Cross Products.
Answer: The product of the numbers which are diagonal from one
another in a proportion equation. Should be equal on both sides.
◉ Common denominator.
Answer: for a set of fractions, a number into which each
denominator can divide evenly
◉ Denominator.
Answer: the bottom number in a fraction
◉ Difference.
Answer: the answer to a subtraction problem
◉ Digit.
Answer: one of the ten number symbols. The digits are 0, 1, 2, 3, 4, 5,
6, 7, 8, and 9.
, ◉ Equation.
Answer: a statement that two amounts are equal
◉ Estimate.
Answer: as a noun: an approximate value.
as a verb: to find an approximate value.
◉ Fraction.
Answer: a part of a whole
◉ Greatest common factor.
Answer: the greatest factor that divides two numbers
◉ Improper fraction.
Answer: a fraction in which the numerator is greater than or equal
to the denominator
◉ Least common multiple.
Answer: the smallest positive number that is a multiple of two or
more numbers.
