Mathematics for IGCSE & O level - The Four Operations (Section 9)

  • 1
    Which number is both a square number and an even number?
    答え
    A
    C
  • 2
    Which of the following statements are true regarding the rules for multiplication and division with positive and negative numbers?
    答え
    A
    B
  • 3
    What is 0.75 + 0.25?
    答え
    (B)
    1.0
  • 4
    What is the result of $\frac{3}{4} \times \frac{2}{5}$?
    答え
    (B)
    6/20
  • 5
    What is the first step to solve the equation: 2x + 3 = 7?
    答え
    (A)
    Subtract 3 from both sides.
  • 6
    What is the correct order of operations to solve this: 2 + (3 * 4) / 2 - 1?
    答え
    (B)
    Parentheses, Multiplication, Division, Addition, Subtraction
  • 7
    What is the area of a rectangle with a length of 5 cm and a width of 3 cm?
    答え
    (B)
    15 cm²
  • 8
    What is 4/9 - 1/3?
    答え
    (A)
    3/6
  • 9
    Which metric unit is typically used to measure the length of a room?
    答え
    (C)
    Meter
  • 10
    Which operations are done before addition and subtraction?
    答え
    A
    B
    C
    D
  • 11
    Which of the following is the same as 1/3 divided by 2?
    答え
    (A)
    1/6
  • 12
    In the equation y = mx + c, what does 'c' represent?
    答え
    (C)
    Y-intercept
  • 13
    Which of the following is equal to 3.2 ÷ 0.08?
    答え
    (C)
    40
  • 14
    When simplifying fractions, you should:
    答え
    (C)
    Divide both the numerator and the denominator by their greatest common factor.
  • 15
    If a product costs $50 and has a 10% discount, what is the discounted price?
    答え
    (D)
    $45
  • 16
    How do you convert a decimal to a percentage?
    答え
    (B)
    Multiply by 100
  • 17
    If the original price is $100 and it is reduced by 30%, what is the new price?
    答え
    (B)
    $70
  • 18
    If the signs are different, what is the result?
    答え
    (B)
    Negative
  • 19
    What is the result of 1/4 + 3/8?
    答え
    (B)
    5/8
  • 20
    What is the value of 2.5 * 4?
    答え
    (C)
    10
  • 21
    Which of the following operations would result in a negative number?
    答え
    A
    D
  • 22
    Which of the following represents 10% of 80?
    答え
    (A)
    8