Math - Unit 5 Vocabulary

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Across
  1. 1. a number that is not exact; a careful guess.
  2. 5. a mathematical phrase involving only numbers and operations
  3. 7. expressing a number to the nearest thousandths, hundredths, tenths, and so on as directed.
  4. 10. finding an equivalent fraction where the numbers are reduced as much as possible.
  5. 13. the number that is being divided.
  6. 14. The third place value after the decimal point; represents 1/1000 of a whole.
  7. 18. a fraction whose numerator is larger than the denominator
  8. 19. The first place value after the decimal point; represents 1/10 of a whole.
  9. 20. a number made up of a whole number and a fraction
  10. 22. distance around a figure
  11. 23. the part of a fraction below the line, which tells how many equal parts there are in the whole or in the group.
  12. 24. The answer when two or more factors are multiplied together.
  13. 25. a mathematical sentence that contains an equals sign.
  14. 26. the size of each group or number of groups when the dividend is divided by the divisor; the answer to a division problem.
  15. 27. counting numbers and zero; 0, 1, 2, 3..
  16. 28. opposite operations, or ones that undo each other such as addition and subtraction or multiplication and division
  17. 29. the rules that say which calculation comes first when simplifying an expression (PEMDAS)
  18. 30. The second place value after the decimal point; represents 1/100 of a whole.
  19. 32. a letter that represents an unknown number
  20. 33. The number written above the line in a fraction. It tells the number of fractional pieces being used.
  21. 34. zeros in the decimal part of a number that follow the last non-zero digit; they do not change the value of the number
Down
  1. 2. the representation of a number as a sum of place values like 57 = 50 + 7
  2. 3. Numbers that are easy to add, subtract, multiply or divide mentally.
  3. 4. a fraction with a numerator of 1.
  4. 6. numbers that are multiplied together to get a product.
  5. 8. the number the dividend is being divided by in a division problem.
  6. 9. LCD The least common multiple of the denominators of two or more fractions.
  7. 11. a whole number greater than 1 that has more than two factors.
  8. 12. dividing a whole into equal parts
  9. 13. when a number can be divided by another with a whole number quotient and no remainder.
  10. 15. the value of a digit as determined by its location in a number
  11. 16. the number of square units a figure or region covers
  12. 17. a whole number greater than 1 with only two factors, 1 and itself
  13. 21. the representation of a number as a product of the digit and its place value 57 = 5 x 10 + 7 x 1; includes multiplication
  14. 31. A number that names a part of a whole or a part of a group.