UPSKILL MATH PLUS

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Observe the given \(4 \times 4\) square grid and follow the instructions given below to appreciate the uniqueness of the arrangement of numbers that gives the total \(139\).
 
Instructions:
  • Add the numbers horizontally.
  • Add the numbers vertically.
  • Add the numbers diagonally.
  • Add the numbers in the four corners of the square.
  • Divide the square into four \(2 \times 2\) squares and add all the numbers in each of the squares.
Important!
This is a self-assessment task. Solve this question and assess the solution steps after completing the test on your own.