Algebra Puzzle #1

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Across
  1. 3. Getting variables alone.
  2. 4. The number in front of a variable.
  3. 6. Numbers, symbols and operators (+, −, ×, ÷, etc) put together to represent a value. Do not have equal signs.
  4. 8. property Multiplying the number outside a set of parentheses to everything inside the parentheses.
  5. 12. An equation that makes a straight line.
  6. 15. terms Terms whose variables with their exponents are the same.
  7. 16. Flipping a fraction or whole number upside down.
  8. 17. Symbols used in pairs to group things together; they also hold parenthesis. [ ]
  9. 18. Replacing values where the letters are.
Down
  1. 1. “Round brackets” are the familiar symbols used in pairs to group things together. Parenthesis can also be used for multiplication.
  2. 2. A symbol for a value we don't know yet. It is usually a letter like x or y.
  3. 4. The number without a variable in an expression or equation.
  4. 5. The answer.
  5. 7. To calculate the value of something.
  6. 9. A single number or variable, or number and variables, multiplied together. Terms are separated by a + or - sign.
  7. 10. of operations The rules that say which calculation comes first in an expression.
  8. 11. A number that stands alone in an expression or equation.
  9. 13. operation The operation that reverses the effect of another operation; the opposite.
  10. 14. An equation says that two things are equal; it has an equal sign.