4th Grade Math Vocabulary

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Across
  1. 3. 12 inches equals one of these
  2. 6. An ordered set of numbers or objects in which the order helps you figure out what comes next
  3. 7. A triangle with three acute angles
  4. 8. A number with one or more digits to the right of the decimal point
  5. 10. A set of rules that tells the order that calculations should be done
  6. 13. Straight lines that cross each other at exactly 90 degrees
  7. 17. The number being divided in a division problem
  8. 20. Straight lines that cross each other at any angle that isn't 90 degrees
  9. 22. A number that is multiplied by another number to find a product
  10. 25. When two or more fractions share the same denominator
  11. 27. An angle that measures less than 90 degrees
  12. 31. Two or more fractions that name the same amount
  13. 32. The distance around an object
  14. 33. To measure the number of unit squares needed to cover a surface
  15. 34. The bottom number of a fraction that represents how many equal parts are in the whole
  16. 36. Straight lines that will never cross
  17. 37. The operation that separates into equal groups; the opposite of multiplication
  18. 38. An angle that measures greater than 90 degrees
  19. 39. The amount left over when a number cannot be divided equally
Down
  1. 1. The answer to a subtraction problem
  2. 2. An operation that tells us how many are left in a group when a number are taken away
  3. 4. A triangle that has one obtuse angle
  4. 5. Opposite operations that undo each other, such as addition and subtraction or multiplication and division
  5. 9. A number that has a 0, 2, 4, 6, or 8 in the ones place
  6. 11. The top number in a fraction that tells how many parts are being counted
  7. 12. The answer to an addition problem
  8. 14. A number sentence that uses the equal sign to show that two amounts are equal
  9. 15. An instruction that tells you the correct way to do something; or the sequence a pattern follows
  10. 16. A way to write numbers using the digits 0-9
  11. 18. The number we are dividing by in a division problem
  12. 19. The value of a digit in a number, based on which place it is in
  13. 21. An angle that forms a square corner, measuring at 90 degrees
  14. 23. A number that names part of a whole
  15. 24. The answer to a division problem
  16. 26. 60 seconds equals one of these
  17. 28. A way to write numbers that shows the value of each digit
  18. 29. The operation for finding the total amount in two or more equal groups; the opposite of division
  19. 30. A number represented by a whole number with a fraction
  20. 31. Groups that have the same amount of objects
  21. 35. A common fraction that we can use to help us compare other fractions