1. Can you find a squigit which is divisible by 7 and larger than 50?
2. Which two squigits have a difference of 100?
3. Find a squigit whose square root is also a squigit.
4. Find a squigit that's also a prime number.
5. How many years last
century were squigits?
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1. 91.... but there are many other correct answers.
2. 11 and 111.... but there are many other correct answers.
3. 1.... but there are many other correct answers.
4. 11.... but there are many other correct answers.
5. 16. (1900, 1901, 1904, 1909, 1910, 1911, 1914, 1919, 1940, 1941, 1944, 1949, 1990, 1991, 1994, 1999)
Teacher, do your students have
access to computers? 

Here a concise URL for a version of this page without the comments.
Here is the URL which will take them to a student activity about square numbers.
Transum.org/go/?to=SquareShoot