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Slick Summing

Age 14 to 16
Challenge Level Yellow star
Secondary curriculum
  • Problem
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Take a look at Picturing Triangular Numbers first.

Related Collections

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Picture Story

Can you see how this picture illustrates the formula for the sum of the first six cube numbers?

The Root of the Problem

Find the sum of this series of surds.

Sums of Powers - A Festive Story

A story for students about adding powers of integers - with a festive twist.

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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