Learn Finnish: Tämä vähennyslasku on minulle liian vaikea. - This subtraction is too difficult for me.

When expressing that an action or concept is difficult, easy, important, or possible "for" someone, Finnish uses the allative case (-lle). The phrase minua varten is mostly used when a physical object is meant or reserved for you, like a gift.

Why is the adjective vaikea in the nominative case rather than the partitive (vaikeaa)?

An adjective that describes the subject (a predicative adjective) must match whether the subject is countable or uncountable. Because vähennyslasku (a specific math problem) is a countable noun in the nominative case, vaikea must also be in the nominative. If the subject were an uncountable concept like "math" (Matematiikka on vaikeaa), you would use the partitive.

Why do we use liian here instead of liikaa to say "too"?

Liian is an adverb used directly in front of adjectives to mean "too" (like liian vaikea for "too difficult"). Liikaa means "too much" and is used with verbs or nouns (for example, tässä on liikaa suolaa meaning "there is too much salt here").

How is the compound word vähennyslasku built?