NameDate
  1. Circle the equations that are always true for all values of a, b, & c:
    a + b = b + a (a + b) / c = (a/c) + (b/c) a + (b + c) = (a + b) + c a·b = b·a
    a - (b + c) = (a - b) + c a·(b + c) = a·b + c a·(b + c) = a·b + a·c (a - b) - c = a - b - c
    (a ÷ b) ÷ c = a ÷ b ÷ c a ÷ (b ÷ c) = (a ÷ b) ÷ c a + (b × c) = (a + b) × c a + b = b × a
  2. Evaluate:
    1. 4 - 3 × 7 + 5 - 32 + 2 × 6 + 8 ÷ 2
    2. 4 - 3 × (7 + 5) - 32 + 2 × (6 + 8) ÷ 2
    3. 4 - 3 × 7 + (5 - 3)2 + 2 × 6 + 8 ÷ 2
    4. 4 - 3 × 7 + 5 - 32 + (2 × 6 + 8) ÷ 2
  3. Solve:
    1. 4x + 5 = 5 - 4x
    2. 4x - 5 = 5 - 4x
    3. 4x - 5 = 5 + 4x
    4. 4x - 5 = -5 + 4x
    5. x/4 + x/6 + x/12 = 6
    6. 3.1x - 5.3 = 2.7 - 4.9x
  4. To convert from degrees Celsius to Fahrenheit, use this formula:  F = (9/5)·C + 32
    A. If the temperature is 25 °C, then what is the temperature in degrees Fahrenheit?
    B. If the temperature is 95 °F, then what is the temperature in degrees Celsius?
  5. “If you count the number of seconds from seeing the lightning until hearing the thunder, then divide by five, you obtain the number of miles away that the thunderstorm is.”

    If we assume that the speed of light is infinitely fast, this sentence tells us that:
    A. Sound travels at 5 miles per second.
    B. Sound travels at 1/5 mile per second.
    C. We cannot determine the speed of sound from this sentence.
  6. If an object is traveling "a mile a minute" how many miiles per hour is it going?
  7. What percent of 60 is 12?
  8. 13 is 25% of what?
  9. If Joe goes to K-Mart with a $20 bill & sales tax = 7%, what is the most he can buy before tax?
  10. The perimeter of a rectangle is 100 inches and its length is 24 inches more than its width.
    What are the dimensions of the rectangle?
  11. Solve for x, then graph:   3x < 5x - 2    OR   -4x > -3x + 2
0 -1 -2 -3 -4 -5 -6 1 2 3 4 5 6