Addicted to Addition


Addition is all you need to be able to do to tackle these tricky tasks.
But that doesn't mean they are going to be easy...


Cryptarithms 

Age 11 to 14
Challenge Level
Can you crack these cryptarithms?

Forwards Add Backwards 

Age 11 to 14
Challenge Level
What happens when you add a three digit number to its reverse?

Add to 200 

Age 11 to 14
Challenge Level
By selecting digits for an addition grid, what targets can you make?

Impossibilities 

Age 11 to 14
Challenge Level
Just because a problem is impossible doesn't mean it's difficult...

Overlaps 

Age 11 to 14
Challenge Level
Can you find ways to put numbers in the overlaps so the rings have equal totals?