1.   What number is shown in the figure?
   
    A. 279 B. 297
    C. 792 D. 729
    Hint

  2.   What number is shown in the figure?
   
    A. 391 B. 139
    C. 193 D. 319
    Hint

  3.   What number is shown in the figure?
   
    A. 891 B. 198
    C. 819 D. 189
    Hint

  4.   What number is shown in the figure?
   
    A. 510 B. 51
    C. 150 D. 15
    Hint

  5.   What number is shown in the figure?
   
    A. 967 B. 769
    C. 976 D. 796
    Hint