8.1. Rounding Numbers8.1.1. ROUND( ), ROUNDDOWN( ), ROUNDUP( ): Rounding Numbers8.1.2. MROUND( ), CEILING( ), and FLOOR( ): More Rounding Functions8.1.3. INT( ) and TRUNC( ): Chopping Off Non-Whole Numbers8.1.4. EVEN( ) and ODD( ): Rounding Up to Even or Odd Values8.2. Groups of Numbers8.2.1. SUM( ): Summing Up Numbers8.2.2. COUNT( ), COUNTA( ), and COUNTBLANK( ): Counting Items in a List8.2.3. MAX( ) and MIN( ): Finding Maximum and Minimum Values8.2.4. LARGE( ), SMALL( ), and RANK( ): Ranking Your Numbers8.2.5. AVERAGE( ) and MEDIAN( ): Finding Average or Median Values8.2.6. MODE( ): Finding Numbers that Frequently Occur in a List8.2.7. PERCENTILE( ) and PERCENTRANK( ): Advanced Ranking Functions8.2.8. FREQUENCY( ): Identifying to Which Category a Number Belongs8.3. General Math Functions8.3.1. PRODUCT( ), FACT( ), POWER( ), and SQRT( ): Products, Factorials, Powers, and Square Roots8.3.2. QUOTIENT( ) and MOD( ): Higher Division8.3.3. ABS( ) and SIGN( ): Absolute Value and Determining a Number’s Sign8.3.4. RAND( ) and RANDBETWEEN( ): Generating Random Numbers8.3.5. GCD( ) and LCM( ): Greatest and Least Common Denominator8.3.6. COMBIN( ) and PERMUT( ): Figuring Combinations and Permutations8.4. Trigonometry and Advanced Math8.5. Advanced Statistics