add or subtract the following measurements. be sure each answer you enter contains the correct number of…

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

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

Answer

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