1.   Find the value of the expression if m = 4.

16 − m

    A. 16 – 4 = 8 B. 16 + 4 = 20
    C. 16 – 4 = 12 D. 16 × 4 = 48
    Hint

  2.   Write an expression for the situation.

three more than y

    A. y + y + y B. 3 − y
    C. y + 3 D. y − 3
    Hint

  3.   The length of a bottle-nose dolphin is 48 inches more than the length of a buffeo dolphin. Let l = the length of a buffeo dolphin.Write an expression for the length of a bottle-nose dolphin.
    A. l + 48 B. l + l + 48
    C. l − 48 D. 48 - l
    Hint

  4.   The length of a bottlenose dolphin is 48 inches more than the length of a buffeo dolphin. If the length of a buffeo dolphin is 46 inches, what is the length of a bottlenose dolphin?
    A. 48 inches B. 108 inches
    C. 94 inches D. 46 inches
    Hint

  5.   Mrs. Garcia’s class has 10 fewer students than Mrs. Martin’s class. Let x = the number of students in Mrs. Martin’s class. How many students are in Mrs. Garcia’s class?
    A. x + 10 B. x − 10
    C. x D. 10 − x
    Hint