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Finish the sequence: 3, 6, 18, __.

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Finish the sequence: 3, 6, 18, __.

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Correct!

Incorrect!

Multiply by increasing numbers: 3×2=6, 6×3=18, then 18×4=72.

Finish the sequence: 3, 6, 18, __.

60

72

30

84

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