Question 2.6: Add 125.17, 129, and 52.2.

Add 125.17, 129, and 52.2.

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\begin{array}{r|c} \begin{matrix}& 125. \\ & 129 \\&52. \end{matrix} & \begin{matrix} 17 \\ & \\2 \end{matrix} \\ \hline \begin{matrix} 306.\end{matrix} & \begin{matrix} 37\end{matrix} \end{array}

The number with the least precision is 129. Therefore the answer is rounded off to the nearest unit: 306.

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