Across
- 1. reasoning to determine an approximate value
- 3. the value of a digit as determined by its location in a number, such as ones, tens, hundreds, one thousands, ten thousands, etc.
- 6. a symbol used to name a number
- 8. symbols to show a group of terms and/or expressions within a mathematical expression
- 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)
- 12. the rules of which calculations are performed first when simplifying an expression
- 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
- 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
- 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. 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. 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
- 4. the representation of a number using digits (e.g., 985,156,789.782)
- 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)
- 7. a method for estimating a group of numbers by slightly adjusting some or all of the numbers to allow for easy mental computation
- 10. to arrange a set of numbers based on their numerical value
- 11. any numeral from 0 – 9