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8B1 REVIEW

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  • A number is to be increased by 30% using a multiplier. Which multiplier should be used? a. 30 b. 1.3 c. 0.7 d. 0.3
    b. 1.3
  • Tossing a coin multiple times is a series of: a. independent events b. dependent events c. complementary events
    a. independent events
  • Five calculators cost $65. To find the cost of 12 calculators you work out: a. 65 x 12 b. 65 / 12 x 5 c. 65/5 x 12
    c. 65/5 x 12
  • Enter the next term. 1.3, 2.6, 5.2, 10.4, 20.8, ______
    41.6
  • What is the y-intercept of the line 2x + y = 7?
    7
  • 10 raise to 3 is equal to
    1 thousand
  • The sum of the exterior angles of a hexagon is ______
    360 degree
  • Which two digits are in the repeating pattern when 1/11 is written as a recurring decimal?
    first digit: 0 second digit:9
  • Select all the data below that would be gathered using measurement. a. The number of siblings in your family b. blood pressure c. Gender d. Hand span
    b. blood pressure and d. hand span
  • When 5/7 is written as a decimal, what is the digit in the 75th decimal place?
    4
  • A necklace has five more red beads than twice the number of blue beads. The necklace has eight blue beads. How many red beads does it have?
    21 red beads
  • Which of these sequences is generated by the formula 2n – 3? a. -3, -5, -7... b. -1, 1, 3 .... c. -3, -1, 1 ....
    b
  • 23, 31, 39, 47, 56, ... Enter a number to complete this sentence. This sequence is increasing by ____.
    8
  • The nth term of the sequence that starts 24, 21, 18,… is 3n + 27. True or False
    False
  • You can write half of an unknown number as: a. m/2 b. 2m c. m + 1/2
    a. m/2
  • The probability of selecting at random a red counter from a bag that contains red and yellow counters only is 2/5. There are 27 yellow counters in the bag. What is the total number of counters in the bag?
    45
  • 5x – 8y = 2 and 2x + 8y = 12 To eliminate 8y you should: a. subtract b. add
    b. add
  • Data is collected from learners in the same class at school. Which of these is qualitative data? a. height b. favourite show c. time it takes to walk to school d. number of brother and sisters.
    b. favourite TV show
  • Solve –3x < 6
    x < -2
  • A rectangle has a fixed area of 100 squared centimeter. The length of the rectangle is multiplied by three. What happens to the width of the rectangle? a. It is multiplied by 3 b. It stays the same c. It is divided by 3
    c. It is divided by 3
  • 5 × 8 = 40 So 0.05 × 0.008 = ______
    0.0004
  • 2.4 divided by _____ = 12
    0.2
  • The gradient of the line y = –2x – 7 is:
    -2
  • All terminating decimals are rational numbers.Is this statement true or false?
    True
  • A straight line has equation y = – 4x + 9. What is the value of y when x = –3?
    21
  • Complete this question without using your calculator. Square root of 10 lies between: a.a.9 and 11b.3 and 4c.4 and 6
    b
  • What type of number is square root of 64? rational or irrational
    rational
  • Calculate 0.1 × 0.2 × 0.3 × 0.4 without using a calculator.
    0.0024
  • To gather data about the different types of insects found in a playground, you would most likely use: a. observation b. survey c. measurement
    a. observation
  • Which is larger? a. 65 / 10 raise to 3 b. 65/10 raise to 6
    a
  • A whole number is 60 when rounded to the nearest ten. What is the lower bound of the number? a. 50 b. 55 c. 56 d. 59
    b. 55