o tells descriptive relationship between 2 or more items
o more than , less than , as as
o adjectives used in comparisons must agree in gender and in number with the first noun
MORE THAN
más + adjective + que
La mochila es más pequeña que el coche
The backpack is smaller than the car
La regla amarilla es más grande que la regla blanca
The yellow ruler is bigger than the white ruler
LESS THAN
menos + adjective + que
La mochila es menos roja que el bolígrafo
The backpack is less red than the pen
Los papeles azules son menos caros que los papeles anaranjados
The blue papers are less expensive than the orange papers
SAME AS
tan + adjective + como
Las mochilas son tan bonitas como la escuela
The backpacks are as pretty as the school
Una goma de borrar es tan útil como un lápiz
An eraser is as useful as a pencil