math crossword

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Across
  1. 1. terms two terms that are the same
  2. 4. 87u+900-4 the 87 is called the
  3. 10. the symbol for a number that you dont know yet is called a
  4. 11. terms two terms that arent the same
  5. 13. an expression with one addition or subtraction with at least two number
  6. 15. form an expression in its original form is called
Down
  1. 2. 6x7 is called a s
  2. 3. an expression without divison by a variable7
  3. 5. 10x8=80 so 10 and 8 are ______ of 80
  4. 6. 87u+900-4 the 4 is called a
  5. 7. an expression with three additions or subtraction with at least 4 numbers
  6. 8. this is what the heighest exponent equals
  7. 9. this is when it shows that to equations are equal
  8. 12. an expression with two additions or subtractions with at least three numbers
  9. 14. a number