Maths

123456
Across
  1. 2. 1/4x2=?
  2. 3. 2018
  3. 6. 60
Down
  1. 1. First 9 numbers of Pi
  2. 2. 33
  3. 4. 1,000-25%
  4. 5. 11x11=? Also a Taylor Swift Song