all units crossword

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Across
  1. 2. means to take something away, usually as in taking a piece out of a whole
  2. 5. adding or something getting bigger by adding
  3. 6. something is to make it less complex and easier to understand
  4. 7. is the measure of a region's size on a surface
  5. 8. has to do with a procedure or rule that is repeated
  6. 10. they don't listen to reason, logic, or even common sense
  7. 12. describes a very rapid increase
  8. 13. a number that can be written as a fraction of two integers
  9. 15. using straight or curved lines in designs or outlines
Down
  1. 1. describes something that pertains to squares, to the operation of squaring
  2. 3. is the quality of being guided by reasons or being reasonable
  3. 4. is where you take one number and add it to itself a certain number of times
  4. 9. is a point where two straight lines or rays meet
  5. 11. is a math concept that measures the total length around the outside of a shape
  6. 14. is an elementary branch of mathematics that deals with numerical operations like addition, subtraction, multiplication, and division