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Name Triangular Numbers
Name the first 50 triangular numbers in 5 minutes!
The standard formula for triangular numbers is:
t=n*(n+1)/2
Alternatively, for every nth triangular number, add n to the previous number.
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Last updated: November 21, 2025
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| First submitted | February 12, 2025 |
| Times taken | 16 |
| Average score | 38.0% | Report this quiz | Report |
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4 Comments
Trompete79
+2
Level 60
Mar 21, 2025
after #25 everything goes off i think
rhager842
+2
Level 29
Mar 21, 2025
Should be fixed now
Pontiac
+1
Level 61
Mar 21, 2025
Here is a simple way to do it. Take the answer and add it to the number that you are on. Simple math.
rhager842
+2
Level 29
Mar 21, 2025
Putting the formula makes me sound smarter, but yeah I knew that
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