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Understanding Place Value and Number Comparison in Mathematics

This lesson covers the concept of place value and how it determines the worth of digits in a number. For example, in 15,324, the value of 5 is 5,000. Students will learn to compare numbers using symbols such as <, >, and =. The lesson also introduces expanded form, where a number is expressed as the sum of the values of its digits (e.g., 2,476 = 2,000 + 400 + 70 + 6), and standard and word forms of numbers. Additionally, it will explain equivalent numbers and units of measure in different contexts.

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Understanding Place Value and Number Comparison in Mathematics

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Presentation Transcript

  1. Unit 1

  2. Place Value the value of the place a digit has in a number example: 15,324 the value of the 5 is 5 thousands or 5,000

  3. Compare • to decide if one number is greater or less than another number • use the symbols <,> or = Examples: 35,291 > 32,951 72,874 = 72,874 60,425 < 89,132

  4. Expanded Form a number written as the sum of the value of its digits example: 2,476 = 2,000 + 400 + 70 + 6

  5. Standard Form a way to write a number showing only its digits. example: 2,476

  6. Word Form a number written in words example: two thousand, four hundred seventy-six

  7. Equivalent numbers that name the same amount example: 1 gallon = 4 quarts = 8 pints = 16 cups

  8. Unit of Measure a quantity used as a standard of measurement example: Units of time are second, minute, hour, day, week, month, year and decade

  9. Web Resources • http://learnzillion.com/lessonsets/167-reading-writing-and-comparing-multidigit-whole-numbers • http://learnzillion.com/lessonsets/155-understanding-multidigit-whole-number-place-value-concepts • http://learnzillion.com/lessonsets/352-solving-multistep-word-problems • Sheppardsoftware.com – click on Math games and select Place Value or Measuring

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