EBook
Perform the following calculations and spell Dulle Tecililiy
MODELO uno + dos = tres
References
1. veinte + seis = velntisesis
2. diez + cinco = quince
3. trece - once = catorce
4. quince + catorce = veintineve
5. dos + ocho = diez
6. diecinueve - dos = diecisiete