Question

what is the answer, with the correct number of decimal places, for this problem? 4.392 g + 102.40 g + 2.51 g = 109.30 g 109.3 g 110 g 109.302 g

Explanation:

Step1: Add the numbers

$4.392+102.40 + 2.51=109.302$

Step2: Determine significant - figures for addition

When adding, the answer should be rounded to the least number of decimal places among the numbers being added. 102.40 has two decimal places, 4.392 has three decimal places and 2.51 has two decimal places. So, we round 109.302 to two decimal places.
$109.302\approx109.30$

Answer:

109.30 g