Chapter 3

Question 1

What are Arabic numerals?

Answer 1

The standard numerical system used globally (e.g., 1, 2, 3).

Question 2

What are Roman numerals?

Answer 2

Letters from the Roman alphabet used to represent numbers (e.g., I = 1, V = 5, X = 10).

Question 3

What are the key Roman numeral values?

Answer 3

A:
I = 1
V = 5
X = 10
L = 50
C = 100
D = 500
M = 1,000

Question 4

Can a numeral be repeated more than three times?

Answer 4

No, numerals like I, X, and C can be repeated up to three times (e.g., XXX = 30), but no more.

Question 5

When is a smaller numeral added to a larger numeral?

Answer 5

When a smaller numeral follows a larger numeral (e.g., VI = 6).

Question 6

When is a smaller numeral subtracted from a larger numeral?

Answer 6

When a smaller numeral precedes a larger numeral (e.g., IV = 4).

Question 7

Which Roman numerals can never be repeated?

Answer 7

V, L, and D can never be repeated.

Question 8

Convert 24 to Roman numerals.

Answer 8

24 = XXIV (20 = XX, 4 = IV).

Question 9

Convert XL to Arabic numerals.

Answer 9

XL = 40 (X = 10, L = 50, so 50 - 10 = 40).

Question 10

What is military time?

Answer 10

A 24-hour time format used in healthcare to avoid confusion, starting at 0000 for midnight and running to 2400.

Question 11

How do you convert PM standard time to military time?

Answer 11

Add 12 to the hour (e.g., 2:00 PM = 1400).

Question 12

How do you convert AM standard time to military time?

Answer 12

The time remains the same, but remove “AM” (e.g., 7:30 AM = 0730).

Question 13

How do you convert 1530 to standard time?

Answer 13

Subtract 12 from the hour for PM times (1530 = 3:30 PM).

Question 14

What is the military time for 11:59 PM?

Answer 14

2359.

Question 15

What is the 12-hour format for 1745 in military time?

Answer 15

5:45 PM.

Question 16

What is the Celsius scale?

Answer 16

A temperature scale where 0°C is the freezing point and 100°C is the boiling point of water.

Question 17

What is the Fahrenheit scale?

Answer 17

A temperature scale where 32°F is the freezing point and 212°F is the boiling point of water.

Question 18

How do you convert Fahrenheit to Celsius?

Answer 18

C = (F - 32) / 1.8

Question 19

How do you convert Celsius to Fahrenheit?

Answer 19

F=(C×1.8)+32.

Question 20

Convert 98.6°F to Celsius.

Answer 20

C = (98.6-32) / 1/8 = 37 C

Question 21

Convert 37°C to Fahrenheit.

Answer 21

F=(37×1.8)+32=98.6°F.

Question 22

What is an alternate formula for converting between Fahrenheit and Celsius?

Answer 22

9C=5F−160, solve for either Celsius or Fahrenheit.

Question 23

What are the freezing and boiling points of water in Celsius and Fahrenheit?

Answer 23

Celsius: Freezing 0°C, Boiling 100°C
Fahrenheit: Freezing 32°F, Boiling 212°F

Question 24

Convert 9:30 PM to military time.

Answer 24

2130.

Question 25

Convert 0045 to 12-hour time.

Answer 25

12:45 AM.

Question 26

Convert 68 to Roman numerals.

Answer 26

LXVIII.

Question 27

Convert 102.6°F to Celsius.

Answer 27

C = (102.6) - 32 / 1.8 = 39.2 C

Question 28

Convert 7:15 PM to military time.

Answer 28

1915.

Question 29

Convert XII to Arabic numerals.

Answer 29

12.

Question 30

Convert 25°C to Fahrenheit.

Answer 30

F=(25×1.8)+32=77°F.

Question 31

What are the most commonly used Roman numerals in pharmacy?

Answer 31

I (1), V (5), X (10), L (50), C (100).

Question 32

Convert XLII to Arabic numerals.

Answer 32

42.