Simple additions can lead to intriguing results...
Square numbers can be represented as the sum of consecutive odd
numbers. What is the sum of 1 + 3 + ..... + 149 + 151 + 153?
Watch the video to see how to sum the sequence. Can you adapt the method to sum other sequences?
A story for students about adding powers of integers - with a festive twist.
Watch the video to see how Charlie works out the sum. Can you adapt his method?
Can you see how this picture illustrates the formula for the sum of
the first six cube numbers?