Unit Two Vocabulary

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Across
  1. 5. A guess about the size, cost, or quality of something.
  2. 7. All the rational and irrational numbers; all of the numbers that can be expressed as decimals.
  3. 9. cubes that are not whole numbers
  4. 10. A decimal number in which a digit or group of digits repeats without end.
  5. 12. a decimal that neither terminates nor repeats.
  6. 14. A number that can be written as a b where a and b are integers, but b is not equal to 0.
  7. 15. a way to express a very large or very small number as the product of a number between 1 and 10 and a power of 10.
  8. 19. Exponents that are negative
  9. 21. One of three equal (identical) factors of a given number
  10. 22. Multiply a number times itself two times
  11. 23. The set of numbers ...,-3,-2,-1,0,1,2,3,…
  12. 24. Numbers are multiplicative inverses of each other if they multiply to equal the identity, 1
  13. 25. Two numbers whose product is 1.
  14. 26. A mathematical sentence that contains an equals sign.
  15. 28. which is read "the bth root of a," is called a radical.
  16. 33. Integers greater than zero
  17. 35. a number greater than zero
  18. 36. equal
  19. 37. a decimal that contains a finite number of digits.
  20. 39. a number written with an exponent. For example, 63 is called an exponential.
  21. 40. A number times itself 3 times.
  22. 41. The term above the line in a fraction.
Down
  1. 1. Base of 10 raised to any exponent
  2. 2. Terms in an algebraic expression that have the same variable raised to the same power
  3. 3. squares that are not whole numbers
  4. 4. The sum of a number and its additive inverse is zero.
  5. 6. numbered expression
  6. 8. a number that is the cube of a whole number
  7. 11. a decimal that continues without end
  8. 13. Writing a number
  9. 16. Pairs of operations that undo each other.
  10. 17. a number that is the square of a whole number.
  11. 18. A phrase involving at least one variable and sometimes numbers and operation symbols.
  12. 20. A letter or symbol used to represent a number.
  13. 27. Numbers less than 0.
  14. 29. A number that can be written as a b where a and b are integers, but b is not equal to 0.
  15. 30. the number or expression used as a factor for repeated multiplication.
  16. 31. The number below the line in a fraction.
  17. 32. The number of times a number or expression (called base) is used as a factor of repeated multiplication.
  18. 34. Exponents
  19. 38. A number whose decimal form is nonterminating and nonrepeating.