1.   Round 485 to the nearest hundred.
    A. 500 B. 490
    C. 480 D. 400
    Hint

  2.   Estimate the quotient of 196 and 19.
    A. 50 B. 10
    C. 100 D. 20
    Hint

  3.   Round 3,120 to the nearest thousand.
    A. 3,100 B. 4,000
    C. 3,000 D. 3,120
    Hint

  4.   Round 485 to the nearest ten.
    A. 500 B. 400
    C. 480 D. 490
    Hint

  5.   Estimate the product of 3,191 and 19.
    A. 60,000 B. 4,000
    C. 50,000 D. 6,000
    Hint