Important Terms- Unit 1

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Across
  1. 1. the statement of equality of two expressions
  2. 8. any number you can write as a fraction
  3. 9. a symbol standing for an unknown quantity
  4. 10. the means of solving a problem
  5. 11. numbers and/or variables with operations
  6. 12. numbers that you naturally count with
Down
  1. 2. 8*1=8, 0+5=5
  2. 3. natural numbers and zero
  3. 4. a+b=b+a
  4. 5. a decimal that is non-terminating
  5. 6. whole numbers, their opposites, and zero
  6. 7. (a+b)+c=a+(b+c)