1.   Choose a tens digit for 2?6 so that the three-digit number is divisible by 6.
    A. 1 B. 0
    C. 3 D. 2
    Hint

  2.   Factor 144 completely.
    A. 4 · 4 · 9 B. 12 · 12
    C. 3 · 3 · 4 · 4 D. 2 · 2 · 2 · 2 · 3 · 3
    Hint

  3.   Which fraction can be expressed as in simplest form?
    A. B.
    C. D.
    Hint

  4.   Simplify
    A. B.
    C. D.
    Hint

  5.   Write 3,458,000 in scientific notation.
    A. 3458 × 103 B. 0.3458 × 106
    C. 3.458 × 103 D. 3.458 × 106
    Hint

  6.   The number 250 is divisible by which number(s) from the following list? 2, 3, 5, 6, or 10
    A. All of 2, 3, 5, 6, and 10 B. 5 and 10 only
    C. 2, 5, and 10 only D. 2, 3, and 6 only
    Hint

  7.   Evaluate 7(ab)3 if a = 3 and b = 1.
    A. 8 B. 28
    C. 42 D. 56
    Hint

  8.   Evaluate x5 - 13 if x = -2.
    A. 3 B. -45
    C. -23 D. 19
    Hint

  9.   Factor –15x2.
    A. -1 · 3 · 5 · x · x B. -1 · 3 · 5 · x2
    C. 3 · 5 · x · x D. 3 · 5 · x2
    Hint

  10.   Factor 7x + 21.
    A. 7(x + 3) B. x(7 + 21)
    C. 7(x + 21) D. 7x(1 + 21)
    Hint

  11.   The area of a rectangle can be written by the expression 24x4+ 18x3. Find a set of possible dimensions for this rectangle.
    A. 6x3 by 4x + 3
    B. 3 by 8x3 + 6x3
    C. 2x4by 12 + 9x
    D. 24x3 by x + 18
    Hint

  12.   Find x7 · x4.
    A. xx11 B. x11
    C. xx28 D. x28
    Hint

  13.   Find (-3y3)(4y2).
    A. 12y6 B. -12y5
    C. -12y6 D. 12y5
    Hint

  14.   Write the expression 5-4 using a positive exponent.
    A. B. -54
    C. 54 D.
    Hint

  15.   Evaluate y-5 if y = -2.
    A. 32 B.
    C. -32 D.
    Hint

  16.   Express 1,000,000 in scientific notation.
    A. 1 × 107 B. 1 × 106
    C. 1 × 10-6 D. 1 × 105
    Hint



Glencoe
The McGraw-Hill Companies