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AMC 8
2024 AMC 8 -
4
4
Part of
2024 AMC 8 -
Problems
(1)
dont make silly mistakes, yunji
Source: 2024 AMC 8 P4
1/25/2024
When Yunji added all the integers from 1 to 9, she mistakenly left out a number. Her incorrect sum turned out to be a square number. Which number did Yunji leave out?
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5
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6
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7
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8
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9
<span class='latex-bold'>(A) </span> 5\qquad<span class='latex-bold'>(B) </span> 6\qquad<span class='latex-bold'>(C) </span> 7\qquad<span class='latex-bold'>(D) </span> 8\qquad<span class='latex-bold'>(E) </span> 9
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6
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7
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8
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9
AMC 8
2024 AMC 8
AMC