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## 'Two and Two' printed from http://nrich.maths.org/

Each of the different letters below stands for a different number.

**How many solutions can you find to this cryptarithm?**

How can you be sure you have found them all?

**Can you create other similar cryptarithms?**
Here are some suggestions to start you off.

** ONE + ONE = TWO**

ONE + TWO = THREE

ONE + THREE = FOUR

FOUR + FIVE = NINE

**Can you make a cryptarithm subtraction?**

*If you enjoyed this problem you may like to take a look at Cryptarithms*
Click here for a poster of this problem.