# SAT Math: Numbers and Operations

Numbers and operations is an area of SAT Math (and PSAT Math) used in most of the word problems and problems involving percentages, averages, and sequences.

### Numbers and Integers on the SAT

### Some Rules Regarding even and odd numbers:

When adding, subtracting, or multiplying even and odd numbers:

even ± even = even

even ± odd = odd

odd ± odd = even

even × even = even

even × odd = even

odd × odd = odd

Sequences are not limited to arithmetic and geometric. Each term can have any relation to the term before it, be it addition, subtraction, multiplication or division. A term may also be defined by multiple terms preceding it.

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