Numbers, Colours and Classroom Objects

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Across
  1. 3. the colour of grass
  2. 5. used to draw pictures
  3. 6. veintitrés más siete
  4. 7. veintisiete menos ocho
  5. 9. used to erase mistakes
  6. 12. quince menos diez
  7. 13. used to write notes
  8. 14. the colour of clouds
  9. 15. the colour of blood
Down
  1. 1. veinte menos cuatro
  2. 2. used to draw a straight line
  3. 4. the colour of the coal
  4. 8. tres más ocho
  5. 10. the colour of egg yoke
  6. 11. used to carry books