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3rd Class Mathematics Addition and Subtraction Question Bank Addition and Subtraction

  • question_answer
    A 4-digit number is written in the boxes below. If the sum of any three consecutive digits is 20, find the value of A?

    A) 1                            

    B) 4

    C) 7

    D) 8  

    Correct Answer: D

    Solution :

     
    A 5 7 8
     
    • 5 + 7 + 8 = 20
    • A + 5 + 7 = 20                
    • A = 8


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