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Question 1 of 5
1. Question
Place 5 up the top of the triangle.
How many solutions are possible when 5 is placed on top?
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Question 2 of 5
2. Question
Set up the triangle so that the numbers in the bottom row are 2 then 1 then 2.
Find all the possible numbers that can go in the top corner of the triangle.
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Question 3 of 5
3. Question
For this challenge, add the rule that the number in the corners must be the same.
How many solutions can you find when the corner numbers are all the same?
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Question 4 of 5
4. Question
Place 4 at the top of the triangle.
How many different solutions are possible when 4 is placed on top?
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Question 5 of 5
5. Question
Which numbers can appear four times in the same solution?
