5th Grade - Unit 4 Vocabulary

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Across
  1. 4. to arrange a set of numbers based on their numerical value
  2. 8. a method for estimating a number by increasing or retaining a specific place value digit according to specific rules and changing all trailing digits to zero
  3. 11. the rules of which calculations are performed first when simplifying an expression
  4. 12. the representation of a number as a sum of place values where each term is shown as a digit(s) times its place value (e.g., 985,156,789.782 as 9(100,000,000) + 8(10,000,000) + 5(1,000,000) + 1(100,000) + 5(10,000) +6(1,000) + 7(100) + 8(10) + 9 + 7(0.1) + 8(0.01) + 2 (0.001) or as 9(100,000,000) + 8(10,000,000) + 5(1,000,000) + 1(100,000) + 5(10,000) +6(1,000) + 7(100) + 8(10) + 9 + 7 () + 8() + 2 ())
  5. 15. reasoning to determine an approximate value
  6. 16. the representation of a number using digits (e.g., 985,156,789.782)
Down
  1. 1. a sequence of zeros in the decimal part of a number that follow the last non-zero digit, and whether recorded or deleted, does not change the value of the number
  2. 2. symbols to show a group of terms and/or expressions within a mathematical expression
  3. 3. the representation of a number as a sum of place values (e.g., 985,156,789.782 as 900,000,000 + 80,000,000 + 5,000,000 + 100,000 + 50,000 + 6,000 + 700 + 80 + 9 + 0.7 + 0.08 + 0.002 or as 900,000,000 + 80,000,000 + 5,000,000 + 100,000 + 50,000 + 6,000 + 700 + 80 + 9 + + + )
  4. 5. the value of a digit as determined by its location in a number, such as ones, tens, hundreds, one thousands, ten thousands, etc.
  5. 6. a method for estimating a group of numbers by slightly adjusting some or all of the numbers to allow for easy mental computation
  6. 7. to consider the value of two numbers to determine which number is greater or less or if the numbers are equal in value
  7. 9. a symbol used to name a number
  8. 10. the representation of a number using written words (e.g., 985,156,789.782 as nine hundred eighty-five million, one hundred fifty-six thousand, seven hundred eighty-nine and seven hundred eighty-two thousandths)
  9. 13. any numeral from 0 – 9
  10. 14. a number in the base-10 place value system used to represent a quantity that may include part of a whole and is recorded with a decimal point separating the whole from the part