maths questions

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Across
  1. 5. trillion 500 000 000 000x2
  2. 6. 4+4
  3. 7. one 16+5
Down
  1. 1. nine 54+45
  2. 2. five 22+33
  3. 3. three 21+22
  4. 4. 4+3
  5. 8. hundred and forty five 122+123