"meglio" → maggiormente
"risoluzione" → approccio
Let me reconstruct the text now with the spintax format.
"difficoltà" is difficulties, challenges, obstacles. "acquisire" is acquire, obtain, procure. "aggiuntive" is additional, extra, supplementary. "comprendere" is understand, grasp, comprehend.
"Risolvi gli esercizi in ordine di difficoltà crescente"