Writing Academically: Avoiding Phrasal Verbs

The researchers double-checked the calculations to ensure accuracy before publishing the results.
Which verb best replaces the phrasal verb "double-checked" in this sentence?

The software was designed to deal with large datasets efficiently.
Which verb best replaces the phrasal verb "deal with" in this sentence?

The researchers found out that the data was incomplete.
Which verb best replaces the phrasal verb "found out" in this sentence?

The team looked into the potential applications of the new technology.
Which verb best replaces the phrasal verb "looked into" in this sentence?

The researchers carried out an experiment to test the hypothesis.
Which verb best replaces the phrasal verb "carried out" in this sentence?

The researchers double-checked the calculations to ensure accuracy before publishing the results. Which verb best replaces the phrasal verb "double-checked" in this sentence?