Say true or false

Gap-fill exercise

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Each of the integers -18,6,-12,0 is greater than -20
-1 is to the right of 0
-10 and 10 are at equal distance from 1
All negative numbers are greater than zero
All whole numbers are integrs