Maths

12345678910111213
Across
  1. 5. 15
  2. 6. -
  3. 8. £
  4. 9. 100
  5. 11. +
  6. 12. 5
  7. 13. 10s
Down
  1. 1. 50
  2. 2. £1 = __________p
  3. 3. 1s
  4. 4. =
  5. 7. x
  6. 10. 5, 6 and 7 are three...