1.   Write in simplest form.
    A. B.
    C. D.
    Hint

  2.   Estimate 6.8 + 4.7 by rounding. Show your work.
    A. 6 + 5 = 11 B. 7 + 6 = 13
    C. 7 + 5 = 12 D. 6 + 4 = 10
    Hint

  3.   Find
    A. B.
    C. D.
    Hint

  4.   Find
    A. B.
    C. D.
    Hint

  5.   Write the difference in simplest form.

    A. B.
    C. D.
    Hint

  6.   Write the difference in simplest form.

    A. B.
    C. D.
    Hint

  7.   Estimate by rounding each mixed number to the nearest whole number.

    A. 4 + 5 = 9 B. 3 + 5 = 8
    C. 4 + 6 = 10 D. 3 + 4 = 7
    Hint

  8.   Estimate by rounding each mixed number to the nearest whole number.

    A. 6 + 7 = 13 B. 7 + 7 = 14
    C. 7 + 6 = 13 D. 6 + 6 = 12
    Hint

  9.   Write the sum in simplest form.

+

    A. B.
    C. D.
    Hint

  10.   Write the sum in simplest form.

    A. B.
    C. D.
    Hint

  11.   Write the difference in simplest form.

    A. B.
    C. D.
    Hint

  12.   Lorna is years old. Frederico is years old. What is the difference in their ages?
    A. yr B. yr
    C. yr D. yr
    Hint

  13.   Write the difference in simplest form.

    A. B.
    C. D.
    Hint

  14.   Write the difference in simplest form.

    A. B.
    C. D.
    Hint