The hardest crossword in the world

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Across
  1. 3. 100 year long
  2. 4. its a subject in school
  3. 5. jack is
  4. 7. use when you get sick
  5. 10. you go to after you finish public school
Down
  1. 1. you did it on the maths test
  2. 2. its the opposite of solve
  3. 4. Youtube ask to do on there channel
  4. 6. you use to get food
  5. 7. you have so much money
  6. 8. you use in maths it starts with a d
  7. 9. you use to clean the house