5th Grade - Unit 4 Vocabulary

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Across
  1. 1. reasoning to determine an approximate value
  2. 3. the value of a digit as determined by its location in a number, such as ones, tens, hundreds, one thousands, ten thousands, etc.
  3. 6. a symbol used to name a number
  4. 8. symbols to show a group of terms and/or expressions within a mathematical expression
  5. 9. 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., 9,851.567 as 9(1,000) + 8(100) + 5(10) + 1(1) + 5(0.1) +6(0.01) + 7(0.001)
  6. 12. the rules of which calculations are performed first when simplifying an expression
  7. 13. 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
  8. 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
  9. 15. to consider the value of two numbers to determine which number is greater or less or if the numbers are equal in value
Down
  1. 1. the representation of a number as a sum of place values (e.g., 9,851.567 as 9,000 + 800 + 50 + 1 + 0.5 + 0.06 + 0.007
  2. 2. 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
  3. 4. the representation of a number using digits (e.g., 985,156,789.782)
  4. 5. 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)
  5. 7. a method for estimating a group of numbers by slightly adjusting some or all of the numbers to allow for easy mental computation
  6. 10. to arrange a set of numbers based on their numerical value
  7. 11. any numeral from 0 – 9