Video Summary

The video is about the basic concepts that are covered in the SAT Math section. These concepts include fractions, squaring, square roots, exponents and radicals, and percents. For fractions, you need to know how to combine, separate, and simplify them. You also need to know how to flip fractions and how to simplify a fraction within a fraction. For squaring, you need to know the three forms of square expansions. You also need to know how to simplify square roots. For exponents and radicals, you need to know the structure of an exponent, how the distribution of exponents works, how to convert a negative exponent to a positive exponent, how fractional exponents work, when to add or subtract exponents, how to multiply exponents, how to match the bases, and how to pull out exponents. For percents, you need to know the definition of percent, how to find the percent of a number, how to find 40% of a number, how to find 40% decrease of a number, and how to calculate the percent change. You also need to know the common mistakes that people make about percent calculations. Here is a summary of the key points: Fractions: - Combine, separate, and simplify fractions - Flip fractions - Simplify a fraction within a fraction Squaring: - Three forms of square expansions - Simplify square roots Exponents and radicals: - Structure of an exponent - Distribution of exponents - Convert a negative exponent to a positive exponent - Fractional exponents - When to add or subtract exponents - Multiply exponents - Match the bases - Pull out exponents Percents: - Definition of percent - Find the percent of a number - Find 40% of a number - Find 40% decrease of a number - Calculate the percent change - Common mistakes that people make about percent calculations