Counting from 100 to 900 is easy, except for some exceptions.
one hundred | cien |
two hundred | doscientos |
three hundred | trescientos |
four hundred | cuatrocientos |
five hundred | quinientos |
six hundred | seiscientos |
seven hundred | setecientos |
eight hundred | ochocientos |
nine hundred | novecientos |
When a number ends in (c)ientos and is followed by a feminine noun, (c)ientos changes into (c)ientas.
seven hundred houses | setecientas casas |
When a number does not end in (c)ientos, this change does not occur when followed by a feminine noun. Also note that unlike tenfolds, hundredfolds and numbers following them are not separated by an y
five hundred forty-three houses | quinientos cuarenta y tres casas |
nine hundred nine | novecientos nueve |