1. The product of two odd numbers is 95.
What are they?
2. The difference between two square numbers is 5.
What are they?
3. The sum of three prime numbers is 13.
What are they?
4. The ratio of two even numbers is 3:4.
What are they?
Topics: Starter  Arithmetic  Number  Puzzles  Ratio
How did you use this starter? Can you suggest
how teachers could present or develop this resource? Do you have any comments? It is always useful to receive
feedback and helps make this free resource even more useful for Maths teachers anywhere in the world.
Click here to enter your comments.
If you don't have the time to provide feedback we'd really appreciate it if you could give this page a score! We are constantly improving and adding to these starters so it would be really helpful to know which ones are most useful. Simply click on a button below:
This starter has scored a mean of 3.0 out of 5 based on 450 votes.
Previous Day  This starter is for 4 June  Next Day
1. 1 and 95 or 5 and 19 (and their negatives).
2. 4 and 9. Could there be any other solutions?
3. 3, 3 and 7 or 3, 5 and 5.
4. 6 and 8 or 12 and 16 or 18 and 24 or ...
Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click a button below to regenerate another version of this starter from random numbers.
Your access to the majority of the Transum resources continues to be free but you can help support the continued growth of the website by doing your Amazon shopping using the links on this page. Below is an Amazon search box and some items chosen and recommended by Transum Mathematics to get you started.
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 related student activity.