MathRead

0: O, 1: I, 2: U, 3: E, 4: A
5: BO, 6: BI, 7: BU, 8: BE, 9: BA

* O, I and A are respectively similar to 0, 1 and 4;
* U has 2 branches; E has 3 branches;
* B means to add 5, just like an upper-bead in the abacus. Thus, the calculation is as easy as abacus, for example, 7+6=BU+BI=(B+B)+(U+I)=10+3=13

* Such design is also very easy to pronounce, because it can be found in the syllable charts of many languages from the far-east language Japanese to the western languages French, Germany, Italian, Portuguese, Spanish …
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