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Intro to Decimals

The content provides a comprehensive overview of decimals, including their place values and arithmetic operations such as addition, subtraction, multiplication, and division.
  • Introduction to the concept of place value in decimals and how it extends the pattern of place value found in whole numbers to the right of the decimal point.
  • Explanation of arithmetic operations with decimals, highlighting the straightforward nature of addition and subtraction by aligning decimal points.
  • Detailed guidance on multiplication of decimals, including counting the number of digits to the right of the decimal point and employing the doubling and halving trick for easier computation.
  • Insights into division of decimals, emphasizing the process of making the divisor a whole number by moving the decimal point and the importance of maintaining the quotient's value unchanged.
  • Clarification on common confusions such as the significance of zeros in different contexts and the concept of significant figures in relation to the GRE exam.
Understanding Decimals and Place Value
Arithmetic with Decimals: Addition and Subtraction
Multiplication of Decimals and the Doubling and Halving Trick
Division of Decimals: Simplifying to Whole Numbers