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What Are They?

Work out the numbers from their descriptions involving sum, product, difference and ratio.

Good luck! You can earn a trophy if you get at least 7 questions correct.

1. The product of two positive odd numbers (greater than one) is 35. What are they?

Correct Wrong
2. The difference between two square numbers is 15. What are they?

Correct Wrong
3. The sum of three prime numbers is 15. What are they?

Correct Wrong
4. The ratio of two even numbers is 7:2. What are they?

Correct Wrong
5. The product of two odd numbers is 961. What are they?

Correct Wrong
6. The difference between two square numbers is 24. What are they?

Correct Wrong
7. The sum of three prime numbers is 37. What are they?

Correct Wrong
8. The ratio of two even numbers is 17:12. What are they?

Correct Wrong
9. The product of two odd numbers is 1763. What are they?

Correct Wrong
10. The difference between two square numbers is 147. What are they?

Correct Wrong
11. The sum of three prime numbers is 91. What are they?

Correct Wrong
12. The ratio of two even numbers is 25:11. What are they?

Correct Wrong
Check

Transum.org

This web site contains over a thousand free mathematical activities for teachers and pupils. Click here to go to the main page which links to all of the resources available.

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Mathematicians are not the people who find Maths easy; they are the people who enjoy how mystifying, puzzling and hard it is. Are you a mathematician?

Comment recorded on the 24 May 'Starter of the Day' page by Ruth Seward, Hagley Park Sports College:

"Find the starters wonderful; students enjoy them and often want to use the idea generated by the starter in other parts of the lesson. Keep up the good work"

Comment recorded on the 10 April 'Starter of the Day' page by Mike Sendrove, Salt Grammar School, UK.:

"A really useful set of resources - thanks. Is the collection available on CD? Are solutions available?"

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Featured Activity

Hi-Low Predict

Hi-Low Predict

A version of the Play Your Cards Right TV programme. Calculate the probabilities of cards being higher or lower than the one shown. a fun way to practise applying probability and using fractions.

Answers

There are answers to this exercise but they are available in this space to teachers, tutors and parents who have logged in to their Transum subscription on this computer.

A Transum subscription unlocks the answers to the online exercises, quizzes and puzzles. It also provides the teacher with access to quality external links on each of the Transum Topic pages and the facility to add to the collection themselves.

Subscribers can manage class lists, lesson plans and assessment data in the Class Admin application and have access to reports of the Transum Trophies earned by class members.

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Go Maths

Learning and understanding Mathematics, at every level, requires learner engagement. Mathematics is not a spectator sport. Sometimes traditional teaching fails to actively involve students. One way to address the problem is through the use of interactive activities and this web site provides many of those. The Go Maths main page links to more activities designed for students in upper Secondary/High school.

Teachers

If you found this activity useful don't forget to record it in your scheme of work or learning management system. The short URL, ready to be copied and pasted, is as follows:

Alternatively, if you use Google Classroom, all you have to do is click on the green icon below in order to add this activity to one of your classes.

It may be worth remembering that if Transum.org should go offline for whatever reason, there are mirror site at Transum.info that contains most of the resources that are available here on Transum.org.

When planning to use technology in your lesson always have a plan B!

Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for those learning Mathematics anywhere in the world. Click here to enter your comments.

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