2.E: Measurement and Problem Solving (Exercises)
 Page ID
 53686
2.1: Measuring Global Temperatures
2.2: Scientific Notation: Writing Large and Small Numbers
2.3: Significant Figures: Writing Numbers to Reflect Precision

Define significant figures. Why are they important?

Define the different types of zeros found in a number and explain whether or not they are significant.

How many significant figures are in each number?
 140
 0.009830
 15,050
 221,560,000
 5.67 × 10^{3}
 2.9600 × 10^{−5}

How many significant figures are in each number?
 1.05
 9,500
 0.0004505
 0.00045050
 7.210 × 10^{6}
 5.00 × 10^{−6}

Round each number to three significant figures.
 34,705
 34,750
 34,570
2.4: Significant Figures in Calculations
2.5: The Basic Units of Measurement
2.6: Problem Solving and Unit Conversions
2.7: Solving Multistep Conversion Problems
2.8: Units Raised to a Power
2.9: Density
2.10: Numerical ProblemSolving Strategies and the Solution Map