To what decimal place should each answer be rounded? how many significant figures does the rounded answer have?
(a) 101 cm−99.1 cm=1.9 cm (unrounded) after rounding, the answer should be reported to the ( ones place / tenths place / hundredths place ) and thus has (1 significant figure / 2 significant figure / 3 significant figure ) (b) 0.5 atm + 9.8 atm = 10.3 atm (unrounded) after rounding, the number should be reported to the ( ones place / tenths place / hundredths place ) and thus has (1 significant figure / 2 significant figure / 3 significant figure ).
Answers: 3
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