Estimate the number: , 5, 3, 20, Estimate the number: , 50, 6, 10, Estimate the number: , 20, 15, 5, Estimate the number: , 15, 60, 2, Estimate the number: , 10, 6, 30, Estimate the number: , 20, 5, 100, Estimate the number: , 60, 3, 20, Estimate the number:, 6, 20, 2.

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