Mathematical operation and symbol notation


  1. Which of the following interchange of sing or numbers would make the given equation correct ?
    5 + 6 ÷ 3 - 12 x 2 = 17









  1. View Hint View Answer Discuss in Forum

    Apply all option one by one.

    Correct Option: A

    Apply all option one by one.
    ∵ 5 + 6 x 3 - 12 ÷ 2 = 17
    ⇒ 5 + 18 - 6 = 17 ⇒ 23 - 6 = 17


  1. Which of the following interchange of sing or numbers would make the given equation correct ?
    (18 ÷ 9) + 3 x 5 = 45









  1. View Hint View Answer Discuss in Forum

    Apply all option one by one.

    Correct Option: B

    ∵ (18 ÷ 9) + 3 x 5 = 45
    ⇒ (18 + 9) ÷ 3 x 5 = 45 ⇒ 27 ÷ 3 x 5 = 45



  1. Which of the following interchange of number would make the given equation correct ?
    8 x 20 ÷ 3 + 9 - 5 = 38









  1. View Hint View Answer Discuss in Forum

    Apply all option one by one

    Correct Option: D

    ∵ 8 x 20 ÷ 3 + 9 - 5 = 38 ⇒ 8 x 20 ÷ 5 + 9 - 3 = 38
    ⇒ 8 x 4 = 9 - 3 = 38 ⇒ 32 + 9 - 3 = 38


  1. Select the correct combination of mathematical signs to replace * signs and to balance the given equation.
    8 * 6 * 96 * 2 = 0









  1. View Hint View Answer Discuss in Forum

    Apply all the option one by one

    Correct Option: B

    ∵ 8 * 6 * 96 * 2 = 0
    ⇒ 8 x 6 - 96 ÷ 2 = 0
    ⇒ 48 - 48 = 0



  1. Select the correct combination of mathematical signs to replace * signs and to balance the given equation.
    9 * 3 * 3 * 3 * 6









  1. View Hint View Answer Discuss in Forum

    Apply all option one by one

    Correct Option: A

    ∵ 9 ÷ 3 x 3 - 3 = 6 ∵ 3 x 3 - 3 = 6
    ⇒ 9 - 3 = 6 ⇒ 6 = 6