Mathitat
Serious maths,
gently done.

The option that gives the most for your money.

In Español · sample
Compra más ventajosaLa opción que da más por tu dinero.

___ is the best buy because it costs less per ___.

The 500 g jar (£2.00) is the best buy because it costs 40p per 100 g; the 300 g jar (£1.50) costs 50p per 100 g.