You may also like

Consecutive Numbers

An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

Roll These Dice

Roll two red dice and a green dice. Add the two numbers on the red dice and take away the number on the green. What are all the different possible answers?

Domino Square

Use the 'double-3 down' dominoes to make a square so that each side has eight dots.

Which Scripts?

Age 7 to 11
Challenge Level

There are six numbers written in five different scripts.

Can you sort out which is which?

Write $51$ in each script.

Numbers written in different scripts.


Here is an interactive version for you to try out your ideas.




[Thank you to the SMILE Centre for permission to use this puzzle.]


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.
Copyright © 1997 - 2022. University of Cambridge. All rights reserved.
NRICH is part of the family of activities in the Millennium Mathematics Project.