Math words and equations

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Across
  1. 2. A 90 degree angle
  2. 6. 378÷9
  3. 8. A fraction with a whole number and a fraction less than one
  4. 10. An angle over 90 degrees.
  5. 13. 828÷9
  6. 14. The only even prime number
Down
  1. 1. 2x3
  2. 3. An angle below 90 degrees.
  3. 4. the answer to a division problem
  4. 5. the answer to a multiplication problem
  5. 7. 34x3
  6. 9. 7x3
  7. 11. The answer to an addition problem
  8. 12. Has no value if alone