Math Vocab

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Across
  1. 4. To combine; put together two or more quantities
  2. 6. A metric unit of length equal to 0.01 of a meter. 100 cm = 1 m
  3. 8. Changing the order of the factors does not change the product
  4. 10. A mathematical phrase without an equal sign
  5. 15. eight-sided shape
  6. 16. seven-sided shape
  7. 20. The primary system of weights and measures used in the United States and a few other countries.
  8. 21. a collection of related addition and subtraction facts, or multiplication and division facts, made from the same numbers
  9. 22. a diagram in which the numerical values of variables are represented by the height or length of lines or rectangles of equal width
  10. 25. three-sided shape
  11. 26. A set of rules that tells the order in which to compute.
  12. 27. A number that has exactly two different factors 1 and itself.
  13. 29. adding 0 to any number, gives the sum as the number itself
  14. 30. An angle with a measure greater than 90º but less than 180º.
  15. 32. twenty-sided shape
  16. 33. Two intersecting lines that form right angles
  17. 34. a dot placed after the figure representing units in a decimal fraction
  18. 35. A system of measurement based on tens. The basic unit of capacity is the liter. The basic unit of length is the meter. The basic unit of mass is the gram.
  19. 37. A clock that shows the time by the hour and minute hand positions
  20. 38. nine-sided shape
  21. 39. The number written above the line in a fraction. It tells how many equal parts are described in the fraction.
  22. 40. The result when one number is subtracted from another
Down
  1. 1. The distance around the outside of a figure
  2. 2. six-sided shape
  3. 3. five-sided shape
  4. 5. a clock that displays the time in numerical digits rather than by hands on a dial.
  5. 7. A customary unit of weight equal to one-sixteenth of a pound. 16 ounces = 1 pound
  6. 9. a^2+b^2=c^2
  7. 11. A quadrilateral with 2 pairs of parallel and congruent sides
  8. 12. Changing the grouping of addends does not change the sum.
  9. 13. a way of writing extramly large/small numbers in a simple decimal form
  10. 14. changing the order of addends does not change the sum.
  11. 17. parenthesis, exponents, multiplication, division, addition, subtraction
  12. 18. four-sided shape
  13. 19. a line on which numbers are marked at intervals used to illustrate simple numerical operations
  14. 23. Lines that are always the same distance apart. They do not intersect
  15. 24. A tool used to measure and draw angles.
  16. 28. ten-sided shape
  17. 31. A number that has a counting number and a fraction.
  18. 36. A number sentence with an equal sign. The amount on one side of the equal sign has the same value as the amount on the other side