Question

perform the calculation and report your answer using sig figs. 657.70 - 26.543 answer perform the calculation and report your answer using sig figs. 35.6 + 4.31 answer perform the calculation and report your answer using sig figs. 4.681/5.21 answer

Explanation:

Step1: Perform subtraction

$657.70 - 26.543=631.157$
Rounding to 5 significant - figures, the answer is $631.16$.

Step2: Perform addition

$35.6+4.31 = 39.91$
Rounding to 3 significant - figures, the answer is $39.9$.

Step3: Perform division

$\frac{4.681}{5.21}\approx0.898464$
Rounding to 3 significant - figures, the answer is $0.898$.

Answer:

$631.16$
$39.9$
$0.898$