Working backwards, leaping forwards
In mathematics lessons, you might be given a question and asked to work out the answer, but these problems are a little bit different! To solve them, you'll need to think about the relationships between functions and operations and their inverses, and work backwards in order to leap forward!
Missing Multipliers Age 7 to 14
Challenge Level
Challenge Level
What is the smallest number of answers you need to reveal in order to work out the missing headers?
Number Pyramids Age 11 to 14
Challenge Level
Challenge Level
Try entering different sets of numbers in the number pyramids. How does the total at the top change?
More Number Pyramids Age 11 to 14
Challenge Level
Challenge Level
When number pyramids have a sequence on the bottom layer, some interesting patterns emerge...
Finding Factors Age 14 to 16
Challenge Level
Challenge Level
Can you find the hidden factors which multiply together to produce each quadratic expression?
Integration Matcher Age 16 to 18
Challenge Level
Challenge Level
Can you match the charts of these functions to the charts of their integrals?
Function Pyramids Age 16 to 18
Challenge Level
Challenge Level
A function pyramid is a structure where each entry in the pyramid is determined by the two entries below it. Can you figure out how the pyramid is generated?
Inverse Problems Save the Day Age 14 to 18
Challenge Level
Challenge Level
Copyright © 1997 - 2023. University of Cambridge.
All rights reserved.
NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.