Answer :
Answer: On changing each infinitive to a gerund, the sentence becomes "Computing the figures will require a calculator."
Explanation: Infinitives and Gerunds can replace the noun in a sentence. What is to be used depends upon the main verb of the sentence.
An infinitive is to + base form of a verb (e.g., to sing, to dance, to cry). They can be used after many adjectives. They are used to show the purpose of an action or decision.
A gerund is the present participle of the verb (e.g., singing, dancing, crying). It is used to replace the subject or object of a sentence. It is to be placed after prepositions of place and time.
In the given sentence,
Infinitive: To compute
Infinitive phrase: To compute the figures
Gerund form of infinitive: Computing.
To learn more about gerunds and infinitives, refer to this link:
brainly.com/question/12854538