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Which is the sum of the first (52) natural numbers?

Answer and explanation

Correct answer: 1378

The sum of the first \(n\) natural numbers is \(\frac{n(n+1)}{2}\). Substituting \(n=52\), we get \(\frac{52\times53}{2}=26\times53=1378\). Hence, 1378 is the correct option. A value such as 1368 may result from an arithmetic error in multiplication or addition. Exam tip: when \(n\) is even, divide it by 2 first to calculate faster.

Related tags

Natural NumbersSum FormulaArithmetic ProgressionSequencesGrade 9 MathematicsSum Of First N Natural NumbersSequences And ProgressionsMathematics

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