Click on the small circles to change the numbers on the apples.
See how the apple numbers affect the totals. Your challenge is to make the number on the lemon equal the target below:
Each time you complete a challenge you will earn a lemon. Ten lemons will earn you a trophy!
8
4
3
2
1
0
9
8
7
6
5
8
4
3
2
1
0
9
8
7
6
5
8
4
3
2
1
0
9
8
7
6
5
8
4
3
2
1
0
9
8
7
6
5
0
0
0
0
0
There is a printable worksheet to go with this activity.


Transum.orgThis 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. Please contact me if you have any suggestions or questions. 
More Activities: 

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 28 May 'Starter of the Day' page by L Smith, Colwyn Bay: "An absolutely brilliant resource. Only recently been discovered but is used daily with all my classes. It is particularly useful when things can be saved for further use. Thank you!" Comment recorded on the 19 October 'Starter of the Day' page by E Pollard, Huddersfield: "I used this with my bottom set in year 9. To engage them I used their name and favorite football team (or pop group) instead of the school name. For homework, I asked each student to find a definition for the key words they had been given (once they had fun trying to guess the answer) and they presented their findings to the rest of the class the following day. They felt really special because the key words came from their own personal information." 


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 

Go MathsLearning 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. TeachersIf 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: 

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. 
Sophie Allpress, DTC
Friday, May 25, 2012
"I think the "lemon law" is bugged because it freezes when you click "next challenge" on the last challenge. also if that button works for you, I also found problems clicking the "claim your trophy"."
Transum,
Saturday, May 26, 2012
"Thanks for letting us know Sophie. You were right. In certain browsers it didn't work properly. The bug has now been fixed."
Mazin Ali, HPS
Saturday, January 28, 2017
"THIS IS AMAZING! Thank you Transum for making this starter of the day. I really appreciate it. My whole class loves it and find this challenge very difficult but it is improving skills."