maths

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Across
  1. 3. compact addition
  2. 5. con in a vex
  3. 6. 6 squares make what
  4. 8. BOING!!!!!!!!
  5. 9. plus what?
Down
  1. 1. 3d versions of 2d things
  2. 2. con in a cave
  3. 3. a maths person
  4. 4. stretched square
  5. 7. the order of maths