Math Crossword

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Across
  1. 4. middle to end
  2. 6. making groups leading to a smaller number
  3. 9. 10 mm
  4. 10. rate of change
  5. 11. 100 cm
  6. 13. equal values
  7. 14. 4 symbols
  8. 15. a measure
  9. 16. smallest metric measure
  10. 18. y=mx+b or y=kx
  11. 20. used to separate or solve something first
  12. 21. reducing a number
Down
  1. 1. adding
  2. 2. 1,000 meters
  3. 3. x
  4. 5. unequal values
  5. 7. 16 cups
  6. 8. around the circle
  7. 12. multiple groups
  8. 17. a line in coordinate grids
  9. 19. multiplying by itself a certain amount of times