Complete the table below by filling in the “blanks” in each row with the name of the metric unit, the property being measured (mass, length, volume), and/or the abbreviation for the metric unit. The first row has been completed as an example.

$$\begin{array}{|l|c|c|} \hline \begin{array}{l} \text { Metric } \\ \text { Unit } \end{array} & \begin{array}{l} \text { Property Being } \\ \text { Measured } \end{array} & \begin{array}{l} \text { Abbreviation } \\ \text { for Metric Unit } \end{array} \\ \hline \text { microliter } & \text { volume } & \mu \mathrm{L} \\ \hline & & \mathrm{kg} \\ \hline \text { megameter } & & \\ \hline & & \mathrm{ng} \\ \hline \text { milliliter } & & \\ \hline \end{array}$$

Round off (or add zeros) to each of the following measured values to give a value that contains three significant figures.

a. 1234 b. 25,730 c. 7.2 d. 3,666,432

Round off (or add zeros) to each of the following measured values to give a value that contains three significant figures.

a. 3567 b. 323,200 c. 18 d. 2,345,346

Round off each of the following measured values to three significant figures.

a. 327.123 b. 3.6007 c. 0.4567 d. 04563

Round off each of the following measured values to three significant figures.

a. 456.455 b. 4.56455 c. 0.31111 d. 0.31151

The number of people present at an outdoor rock concert was estimated by police to be 40,000. What is the high and low estimate for the number of people present at the concert if it is assumed that this estimate has each of the following uncertainties?

a. 10,000 b. 1000 c. 100 d. 10

Round off each of the following measured values to the hundredths decimal place.

a. 42.333 b. 231.45001 c. 0.07499 d. 7.1000

Complete the table below by filling in the “blanks” in each row with the name of the metric system prefix, its abbreviation, and/or the power of ten to which it is equivalent. The first row has been completed as an example.

$$\begin{array}{|l|c|c|} \hline \begin{array}{l} \text { Metric } \\ \text { Prefix } \end{array} & \begin{array}{l} \text { Abbreviation } \\ \text { for Prefix } \end{array} & \begin{array}{l} \text { Mathematical } \\ \text { Meaning of Prefix } \end{array} \\ \hline \text { centi- } & \mathrm{c} & 10^{-2} \\ \hline & \mathrm{k} & \\ \hline \text { mega- } & & \\ \hline & & 10^{-12} \\ \hline \text { deci- } & & \\ \hline \end{array}$$

Round off each of the following measured values to the tenths decimal place.

a. 45.3455 b. 375.14 c. 0.7567 d. 3.0500

The number of people watching a parade was estimated by police to be 50,000. What is the high and low estimate for the number of people watching the parade if it is assumed that this estimate has each of the following uncertainties?

a. 10,000 b. 1000 c. 100 d. 10

What is the magnitude of the uncertainty ($\pm10,\pm0.1$, etc.) associated with each of the measured values in Problem 2.32?

In which of the following pairs of numbers do both members of the pair contain the same number of significant figures? a. 345,000 and 340,500 b. 2302 and 2320 c. 0.6600 and 0.66 d. 936 and 936,000

What is the magnitude of the uncertainty ($\pm10,\pm0.1$, etc.) associated with each of the measured values in Problem 2.31?

Arrange each of the following from smallest to largest.

a. Milliliter, gigaliter, microliter b. Centigram, megagram, decigram c. Micrometer, picometer, kilometer d. Nanoliter, milliliter, centiliter