1.   What does the model show?
   
    A. 40 ones B. 400 tens
    C. 40 tens D. 4 tens
    Hint

  2.   What does the model show?
   
    A. 6 tens B. 60 tens
    C. 600 tens D. 60 ones
    Hint

  3.   What does the model show?
   
    A. 7 tens B. 70 tens
    C. 70 ones D. 700 tens
    Hint

  4.   What does the model show?
   
    A. 2 tens B. 20 tens
    C. 20 ones D. 200 tens
    Hint

  5.   How many tens are in 3 hundreds?
    A. 300 tens B. 3 tens
    C. 300 ones D. 30 tens
    Hint