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
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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