math

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Across
  1. 2. 66x10+8
  2. 6. 44x10x10+100
  3. 8. 1111x6
  4. 10. 90+8x10
  5. 11. 5x10x10+9
Down
  1. 1. 400+60+8
  2. 3. 6x100+90+6
  3. 4. 2009+16
  4. 5. 270+90
  5. 6. 5x9
  6. 7. 9+90x10+9
  7. 9. 5x130