This is level 1: pick prime numbers in the range 1 to 16.
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Your job is to pick the
prime numbered fruit from
the tree by clicking on them
as quickly as possible.
All the prime numbers have not been picked yet. Keep trying.
You have tried to pick a numbered fruit that is not prime.
Try to remember that is not prime.
Try Again
This is a very simple game designed to help you remember the prime numbers. After pressing the Start button you have to click (not drag) the fruit with prime numbers written on them. There are six prime numbers on the tree. The others are composite numbers. When you have picked the six prime numbers click the Check button. The timer will then stop and you can collect your trophy. If, by mistake, you click on a number that is not prime the game ends and all the fruit will fall off the tree. You will then be better able to try that level again and achieve a fast time. |
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© Transum Mathematics :: This activity can be found online at:
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 numbers as being either prime or composite 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 in the last month for this level (Level 1) has been achieved by Elise March805 with a time of 0:04 (that is 4 seconds) on Wednesday, March 12, 2025. Can you beat that? If you can make sure you claim a trophy because that is how fast times are officially recognised.
Elise March805
0:04
Chris Smith @aap03102 Twitter,
Monday, September 16, 2019
"You’ve met the first six primes:
2,3,5,7,13,11
They form a nice calculation:
23x57=1311."
Stephanie Cardillo, Campbelltown PS
Thursday, November 28, 2019
"
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Crosthwaite School, Twitter
Tuesday, November 29, 2022