Using the rules of significant figures, calculate the following: 54.34 + 45.66

Convert: 0.742 mm = _____ m.

Convert 786.5 mi to kilometers (1 m = 1.094 yd; 1 mi = 1760. yd).

Convert: 0.742 mm = _____ m.

Using the rules of significant figures, calculate the following: 54.34 + 45.66

The number of milligrams in 1.0 g is

The number 0.001 expressed in exponential notation is

Using the rules of significant figures, calculate the following:         5.374  + 4.1  + 6 =

Convert: 8.21 × 102 g = ____________ kg.

How many milliliters are in 0.063 L?