An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.
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?
Use the 'double-3 down' dominoes to make a square so that each side has eight dots.
There are six numbers written in five different scripts.
Can you sort out which is which?
Write $51$ in each script.
[Thank you to the SMILE Centre for permission to use this puzzle.]