Brain Teasers
Triangled
1,4,9,16,25 are all squared numbers.
?,?,?,?,? are all triangled numbers.
Fill in the blanks.
?,?,?,?,? are all triangled numbers.
Fill in the blanks.
Hint
If writing on paper use dots to help you.Answer
1,3,6,10,15Hide Hint Show Hint Hide Answer Show Answer
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