What is 3.5+2.75?, 6.25, 7.25, 6.15, 5.25, What is 5.0 - 3.2?, 2.8, 2.0, 1.2, 1.8, Multiply 0.2 by 0.5, 1.0, 0.1, 0.7, 0.07, Divide 8.4 by 2.1, 0.4, 4, 0.04, 40.

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