1.   Which operation should be done first when evaluating 15 5 3 + 2 - 1?
    A. multiplication B. subtraction
    C. addition D. division
    Hint

  2.   Evaluate 3 · 4 + 62
    A. 76 B. 48
    C. 24 D. 103
    Hint

  3.   Evaluate 42 10
    A. 26 B. 2
    C. 6 D. 16
    Hint

  4.   Multiply 45.3 × 102.
    A. 4.53 B. 4,530
    C. 453 D. 0.453
    Hint

  5.   The table shows how much time Eva spent in a music chat room on the Internet during the week. Which expression cannot be used to find the total number of hours she spent in the chat room?
   
    A. 1.5 + 1.5 + 1.5 + 1 + 1 + 2
    B. 5(1.5 + 1) + 2
    C. 3 × 1.5 + 2 × 1 + 2
    D. 3(1.5) + 2(1) + 2
    Hint



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