Wording into Expression — task. Maths CBSE Live product, Class 7 (2026-27).

A library has 400 storybooks. It receives 3 boxes containing 20 books each and then give away 31 books to another school. Which expression represents the number of books left?

\(400 + 3 \times 20 + 31\)
\((400 + 3) \times 20 - 31\)
\(400 + 3 \times (20 - 31)\)
\(400 + (3 \times 20) - 31\)

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4. Wording into Expression

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