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For ideas on how this problem and others from the Dotty Grids Collections can be used in the classroom, you may be interested to read this article.
Here is a poster version of this problem that you may wish to print out and use.
Are We Nearly There?
For ideas on how this problem and others from the Dotty Grids Collections can be used in the classroom, you may be interested to read this article.
Here is a poster version of this problem that you may wish to print out and use.
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Pair Sums
Five numbers added together in pairs produce: 0, 2, 4, 4, 6, 8, 9, 11, 13, 15 What are the five numbers?
Summing Consecutive Numbers
15 = 7 + 8 and 10 = 1 + 2 + 3 + 4. Can you say which numbers can be expressed as the sum of two or more consecutive integers?
Big Powers
Three people chose this as a favourite problem. It is the sort of problem that needs thinking time - but once the connection is made it gives access to many similar ideas.