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Challenging maths problem-solving activity to boost team skills.
- Simple set-up
- Promotes collaboration
- Focus on critical thinking
- Ideal maths game
- Virtual options
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Maths Problem-Solving Activity
This activity challenges small teams to collaborate strategically using mathematical operations to reach specific numerical targets. As a maths problem-solving activity, Get Twenty encourages creative thinking and multiple solution pathways whilst developing computational fluency in a supportive group context. Perfect as a fun group initiative or time-filler, it will promote active discussion and cooperative learning.
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Original post August 2017, last updated September 2025.
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I led this one today for a small group (4) and it was a big hit! Highly recommend it. I did it virtually using one of those random card generators and it worked just fine. Used a whiteboard in Zoom.
This is great to hear Josh, well done. Good to know that it worked virtually 🙂
Got to play that recently.. quite the challenge if you are up to it. We as a group were and managed to solve it. Great lesson in “working with the hand you are dealt” or finding creative ways to solve an issue with the tools you are given.. tools being all the mathematical symbols or selective symbols depending on the groups age and ability
This a great activity for my 8th-grade students to play while I was checking homework in class. I had to give the student groups new numbers as they solved each problem, but they were very engaged in working on the problem. The students requested to play again.
This is a great idea Erin. Thank you for sharing – there’s never enough ideas to help us all fill-in idle time a little more productively.