Math

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Across
  1. 6. describes the sum of angles that can be arranged together so that they form a full turn
  2. 7. a statement that the values of two mathematical expressions are equal
  3. 10. the set of values that satisfy a given set of equations or inequalities
  4. 12. formed when two lines intersect each other at a single point
  5. 13. compares two values, showing if one is less than, greater than, or simply not equal to another value
  6. 15. is either a single number or variable, or numbers and variables multiplied together
  7. 16. are the angles opposite each other when two lines cross
  8. 18. when they have a common side and a common vertex (corner point), and don't overlap.
  9. 19. he sum of angles that can be arranged together so that they form a straight line
Down
  1. 1. parentheses ( ), brackets [ ], and braces { }
  2. 2. a sentence with a minimum of two numbers or variables and at least one math operation
  3. 3. terms whose variables (and their exponents such as the 2 in x2) are the same
  4. 4. a symbol and placeholder for any mathematical object
  5. 5. Two angles that add up to 90 degrees
  6. 8. expressions that work the same even though they look different
  7. 9. Two angles that add up to 180 degrees
  8. 11. a combination of numbers and mathematical operations that children are often required to solve
  9. 14. an angle that is 180 degrees
  10. 17. a number that divides another number, leaving no remainder