Jump to a New ChapterAnatomy of SAT Numbers & OperationsEssential ConceptsEssential StrategiesTest-Taking StrategiesThe 8 Most Common MistakesConclusionSet 1: Multiple ChoiceSet 2: Grid-InsPosttest
 Number Terms Order of Operations Odd and Even Numbers Positive/Negative/Undecided Divisibility and Remainders Fearless Factors Multiples, Multiples, Multiples Fractions

 Decimals Percents Ratios Exponents, or The Powers That Be Roots and Radicals Sequences Sets
Number Terms
To answer the items correctly, you need to be familiar with the terminology of numbers. These terms appear in a majority of all SAT Math items, not just the ones dealing with numbers & operations.
Number Terms and Definitions
Term Definition Examples
Whole numbers The set of numbers we use to count objects. 0, 1, 2, 3
Natural numbers The set of all whole numbers, excluding zero. 1, 2, 3, 4, 5, 6
Integers The set of all positive and negative whole numbers, including zero. No fractions. –2, –1, 0, 1, 2, 3
Rational Numbers The set of numbers that can be expressed as integers in fractions, in the form m/n, where m and n are integers. , ,
Irrational numbers The set of all numbers that cannot be expressed as integers in a fraction. , 0.33333333,
Real numbers Every number on the number line. The set of real numbers includes all rational and irrational numbers. Anything!
 Jump to a New ChapterAnatomy of SAT Numbers & OperationsEssential ConceptsEssential StrategiesTest-Taking StrategiesThe 8 Most Common MistakesConclusionSet 1: Multiple ChoiceSet 2: Grid-InsPosttest
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