Crossword Puzzle Math edition

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Across
  1. 2. the math tool we cannot live with out
  2. 5. repeated subtraction
  3. 7. we do it ever wed.for PSSA prep
  4. 11. less than greater than equal to
  5. 12. repeated addition
Down
  1. 1. square,rectangle,rhombus, trapezoid...
  2. 3. they have three side
  3. 4. we use it to correct are home work
  4. 6. Best math techer
  5. 8. we say it after the whole number
  6. 9. you put it on are math test
  7. 10. we do it every other day for E.I