This is level 5: identify prime numbers up to 144.
No
Yes
99
Whe a number appears
on the tree you have to decide
if it is a prime number then click the
Yes or the No button.
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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 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?" Comment recorded on the 6 May 'Starter of the Day' page by Natalie, London: "I am thankful for providing such wonderful starters. They are of immence help and the students enjoy them very much. These starters have saved my time and have made my lessons enjoyable." |
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Numeracy"Numeracy is a proficiency which is developed mainly in Mathematics but also in other subjects. It is more than an ability to do basic arithmetic. It involves developing confidence and competence with numbers and measures. It requires understanding of the number system, a repertoire of mathematical techniques, and an inclination and ability to solve quantitative or spatial problems in a range of contexts. Numeracy also demands understanding of the ways in which data are gathered by counting and measuring, and presented in graphs, diagrams, charts and tables." Secondary National Strategy, Mathematics at key stage 3 |
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www.Transum.org/go/?Num=791
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Level 1 - Pick prime numbers in the range 1 to 16
Level 2 - Pick prime numbers in the range 17 to 37
Level 3 - Pick prime numbers in the range 38 to 61
Level 4 - Pick prime numbers in the range 62 to 99
Level 5 - Identify prime numbers up to 144
More on this topic including lesson Starters, visual aids, investigations and self-marking exercises.
Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.
Currently the fastest time for this level (Level 5) has been achieved by Sa224612 with a time of 1:12 (that is 72 seconds) on Friday, January 28, 2022. Can you beat that? If you can make sure you claim a trophy because that is how fast times are officially recognised.
Sa224612
1:12