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There are 9 people in a room. Each person has 2 eyes.
Tom calculated the total number of eyes by adding \(2+2+2+2+2+2+2+2+2\).

Is there an easier way to find the total number of eyes?Choose 1 answer

\(2 + 9\)
\(9 \times 9\)
\(9 + 9\)
\(1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1\)