Choose the correct form of the verb. 1. They are having a discussion on philosophy now.
2. They are attending the conference at the Institute of Mathematics.
3. The student is trying to find the remainder while dividing 341 by 8.
4. We are speaking about the numeration system at the lesson.
5. We often discuss various types of mathematical sentences.
6. The sentence contains 3 new words.
7. The primitive computer adds, subtracts, multiplies and divides.
8. In the Hindu-Arabic system we use ten digits.
9. We get the sum as a result of addition.

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