Question

add or subtract the following measurements. be sure each answer you enter contains the correct number of significant digits. 10.8 g + 0.920 g = g 9.50 g - 0.5 g = g 15.600 g - 0.70 g = g

Explanation:

Step1: Add 10.8 g and 0.920 g

$10.8 + 0.920=11.72$ g. Since 10.8 has one - decimal - place, the answer is rounded to 11.7 g.

Step2: Subtract 0.5 g from 9.50 g

$9.50−0.5 = 9.0$ g.

Step3: Subtract 0.70 g from 15.600 g

$15.600−0.70 = 14.90$ g.

Answer:

11.7 g
9.0 g
14.90 g