When you add or subtract numbers, keep the fewest number of decimal places in the calculation.

$2\mathrm{.}46+6\mathrm{.}1743=8\mathrm{.}63to2$ decimal places

$2\mathrm{.}5+6\mathrm{.}1743=8\mathrm{.}7to1$ decimal place

determines the amount of precision in the answer. If there is more than one way to calculate an answer, the answer with the greatest precision will be expected. done adding the sugar.

Theck the number of significant figures. $g$ determined to weigh $350\mathrm{.}0g$ and we$,$ again, want to add $1\mathrm{.}9g$ of sugar. Enter the weight we would expect to see on the balance when we're done adding the sugar.

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