Maths

Edit Answers
12345678
Across
  1. 1. 9+?=20
  2. 2. 23+44
  3. 3. 23+64
  4. 4. 0x5454446564537765556567456473847574834757483412345678909876543212
  5. 6. 7+2
  6. 8. 40doubled
Down
  1. 1. 800+70
  2. 5. 50+50
  3. 7. 2.5doubled