BOY 1: Uno más uno es igual a dos. BOY 2: Cinco menos uno es igual a cuatro. BOY 3: Diez dividido por dos es igual a cinco. Tip: This video can be used as an interactive introduction to this ...

Tip: This video can be used as an interactive introduction to this topic or as a recap on key vocabulary and phrases already learnt. 20 veinte close Sorry, something ...