Learn Dutch: Alle kleine donaties maken samen een groot bedrag. - All small donations together make a large amount.

In Dutch, we use alle for general plurals, meaning 'all' of something in general. Here, we mean 'all small donations' universally. If we were talking about a specific group of donations we just received, we would use al de (all of the) instead.

Why is it groot bedrag instead of grote bedrag?

Because bedrag is a neuter (het) noun (het bedrag). When a neuter noun is introduced by an indefinite article like een (a), the adjective before it drops the -e ending.

Why does klein get an -e ending here to become kleine?

Because donaties is a plural noun. Adjectives that come before plural nouns almost always take an -e ending, regardless of whether the singular noun uses de or het.

Why is samen placed right after the verb maken?

Samen (together) acts as an adverb here. In a standard main clause, adverbs like this usually come immediately after the conjugated verb. It emphasizes how the donations make the amount: together.