1. The product of two odd numbers is 63.
What are they?
2. The difference between two square numbers is 7.
What are they?
3. The sum of three prime numbers is 25.
What are they?
4. The ratio of two even numbers is 9:3.
What are they?
Topics: Starter | Arithmetic | Number | Puzzles | Ratio
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1. 1 and 63 or 3 and 21 or 7 and 9 (and their negatives).
2. 9 and 16. Could there be any other solutions?
3. 3, 3 and 19 or 3, 5 and 17 or 3, 11 and 11 or 5, 7 and 13 or 7, 7 and 11.
4. 18 and 6 or 36 and 12 or 54 and 18 or ...
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Teacher, do your students have access to computers such as tablets, iPads or Laptops? This page was really designed for projection on a whiteboard but if you really want the students to have access to it here is a concise URL for a version of this page without the comments: Transum.org/go/?Start=June4 However it would be better to assign one of the student interactive activities below. |
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Here is the URL which will take them to a related student activity.
