Our vocabulary quiz cards for learning the definition of everyday math words.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Standard Notation | Just the number as we normally write it.
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| Equivalent | Equal in value but in different forms.
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| Whole Numbers | The number (0,1,2,3,....). There is no fractional or decimal part and no negatives.
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| Expanded Notation | Writing a number to show the value of each digit. It is shown as a sum of each digit multiplied by its matching place value (units, tens, hundreds, etc.)
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| Exponential Notation | A shorthand way of representing repeated multiplication of the same factor.
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| Scientific Notation | Where a number is written in two parts: First: just the digits (with the decimal point placed after the first digit), Followed by: x10 to a power that would put the decimal point back where it should be.
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| Integer | A number with no fractional part. For example, -2, -1, 0, 1, 2
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| Prime Factorization | A number, expressed as a product of prime factors. For example, of 24 is 2 x 2 x 2x 3.
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| Decimal | A fraction that that has a denominator of a power of ten, the power depending on or deciding the decimal place.
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| Positive Number | Numbers greater than 0 that can be written as a fraction or a terminating or repeating decimal.
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| Negative Number | A number less than 0; a number to the left of zero on the horizontal number line.
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| Array | A rectangular arrangement of objects in rows and columns.
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| Fractions | A number in the form a-b or a/b, where a and b are whole numbers and b is not 0. They are used to name part of a whole object or a part of a whole collection of objects, or to compare two quantities. They can also represent division.
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| Percents | Per hundred, or out of a hundred. For example "48% the students in the school are boys" that means that out of 100 students in the school, 48 are boys.
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| Common Denominator | Two fractions is any nonzero number that is a multiple of the denominators of both fractions.
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| Sum | The answer in an addition problem.
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| Least Common Denominator | The least common multiple of the denominators of every fraction in a given set.
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| Place Value | Determines the value of a digit in a number, written in standard notation, as determined by its position. Each place has a value ten times that of the place to its right and one-tenth the value of the place to its left.
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| Simplest Form | A fraction in which the numerator and denominator have no common factor except 1 and the numerator is less than the denominator.
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| Difference | The answer in a division problem.
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| Numerator | In a whole divided into a number of equal parts, the number of equal parts being considered or discussed. The number or variable on the top of the fraction.
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| Equivalent Fractions | Fractions that have different numerators and denominators but name the same value or number.
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| Denominator | The number of equal parts into which the whole (or ONE or unit) is divided. The number or variable on the bottom of the fraction.
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| Greatest Common Factor | The highest number that divides exactly into two or more numbers.
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| Least Common Multiple | The smallest number that is a multiple of two or more numbers.
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| Multiple | The result of multiplying by a whole number. For example 20 is a multiple of 4 and 5.
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| Exponent | A symbol or number placed above and after another symbol or number to denote the power to which the latter is to be raised.
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| Absolute Value | The absolute value of a positive number is the number itself.
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| Compatible Numbers | Numbers that are close in value to the actual numbers and easy to add, subtract, multiply, or divide mentally.
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| Front-End Estimation | Estimating to the highest place value. Ex. 7,438=7,000.
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| Round | This means reducing the digits in a number while trying to keep it's value similiar.
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| Prime Number | This is a number that can be divided evenly by only 1 or itself. It must be greater than one.
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| Estimate | A calculation of a close, rather than exact, answer; a "ballpark" answer; a number close to another number.
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| Composite Number | This is a number that can be divided evenly by numbers other than one or itself. It has more than one factor pair.
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| Factor | Factors are the numbers you multiply together to get another number. For example: 3 and 4 are factors of 12 because 3x4=12.
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