1. The product of two odd numbers is 99.
What are they?
2. The difference between two square numbers is 12.
What are they?
3. The sum of three prime numbers is 21.
What are they?
4. The ratio of two even numbers is 9:2.
What are they?
Topics: Starter  Arithmetic  Number  Puzzles  Ratio
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Previous Day  This starter is for 4 June  Next Day
1. 1 and 99 or 3 and 33 or 9 and 11 (and their negatives).
2. 4 and 16. Could there be any other solutions?
3. 2, 2 and 17 or 3, 5 and 13 or 3, 7 and 11 or 5, 5 and 11 or 7, 7 and 7.
4. 18 and 4 or 36 and 8 or 54 and 12 or ...
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