UNIT H: MEDICAL MATH
Unit/Competency/Objective
H
HT08.
MEDICAL MATH
Analyze the use of medical mathematics in the health
care system.
HT08.01 Identify and use household and metric units.
HT08.02 Convert among metric and standard measurements.
HT08.03 Use Roman numerals and the 24-hour clock.
Cognitive
Performance
6%
3%
2%
2%
2%
1%
1%
1%
Unit Materials
Intro
Web Resources
Content Outline
Lesson Plans
H.2
H.3 – H.4
H.5 – H.7
HT08.01
Medical Math Conversion Chart
Medical Math Pretest
KEY: Medical Math Pretest
Household and Metric Worksheet
KEY: Household and Metric Worksheet
H.8
H.9
H.10
H.11
H.12
HT08.02
Conversion Problems
KEY: Conversion Problems
Around the House
H.13
H.14
H.15
HT08.03
Roman Numerals and the 24-Hour Clock
KEY: Roman Numerals and the 24-Hour Clock
H.16
H.17
HT7210 Health Team Relations
Summer 2005
H.1
Medical Math
Recommended Resources
First Edition
Author: Louise Simmers
ISBN #: 1401858090
©2004 Publish Date: 1/5/2004
Binding: Hardcover
Pages: 340
Publisher: Delmar Learning
Supplemental Resources
Almost every health science textbook includes a metric math section. Teachers should
review existing classroom resources for useful supplemental activities.
Web Resources
http://lamar.colostate.edu/~hillger/#education
This link takes you directly to the educator section of the U.S. Metric System web site.
http://school.discovery.com/lessonplans/programs/metricworld/
Includes a two-hour lesson with some creative activities, including a good writing activity:
Metric Stories. Have students use the information on their Classroom Activity Sheets to
write a story, journal entry, or letter about a typical day if they were to wake up in a world
that used only the metric system. Encourage them to include more examples of metric
measurements in their daily life, such as speed limit signs and the price of gas per liter. If
time permits, have students share their stories in class.
http://www.sciencespot.net/Pages/classmetric.html
Metric mania lessons – includes a number of great ideas. Our favorite is the Gummy
Bear lab at http://www.sciencespot.net/Media/mmaniabearlab.pdf
Teachers will need to adapt the lab for the measures used in the HTR unit, but it is a fun
activity with good learning potential for students.
HT7210 Health Team Relations
Summer 2005
H.2
Medical Math
Content Outline
Unit H
Medical Math
HT08.01
Identify and use household and metric units.
A. Length/Distance - Household
1. inch (“ or in)
2. foot (‘ or ft)
3. yard (yd)
B. Capacity/Volume - Household
1. teaspoon (t or tsp)
2. tablespoon (T or tbsp)
3. ounce (oz)
4. cup (C)
5. pint (pt)
6. quart (qt)
C. Mass/Weight - Household
1. ounce (oz )
2. pound ( lb )
D. Metric System
1. Distance/length: meter (m)
2. Volume: liter (L)
3. Mass/weight: gram (g or gm)
4. Common metric prefixes
a. Kilo: 1000 times
b. Centi: 1/100
c. Milli: 1/1000
5. Metric conversions
a. 1 m = 100 cm
b. 1 m = 1000 mm
c. 10 mm = 1 cm
d. 1 L = 1000 mL
e. 1 mL = 1 cc
f. 1 g = 1000 mg
g. 1 kg = 1000 g
HT08.02
HT7210 Health Team Relations
Summer 2005
Convert among metric and standard measurements.
A. 1 in = 2.5 cm
B. 39.4 in = 1 m
D. 1 tsp = 5 mL
E. 1 oz = 30 mL
F. 1 qt = 1000 cc
G. 2.2 lb = 1 kg
H. Temperature
1. Celsius to Fahrenheit (0C x 1.8) + 32 = 0F
2. Fahrenheit to Celsius (0F – 32) ÷ 1.8 = 0C
H.3
Medical Math
HT08.03
Use Roman numerals and the 24 hour clock.
A. Roman numerals
1. I = 1
2. V = 5
3. X = 10
4. L = 50
5. C = 100
6. D = 500
7. M = 1000
B. Military time
1. Time expressed using 4 digits
2. Convert military and traditional time
a. 0100 = 1 am
b. 0530 = 5:30 am
c. 1200 = noon
d. 1400 = 2 pm
e. 2000 = 8 pm
f. 2400 = midnight
g. etc.
HT7210 Health Team Relations
Summer 2005
H.4
Medical Math
MEDICAL MATH CONVERSION CHART
Length
Volume for Fluids
1 meter (m) = 100 centimeters (cm)
1 meter (m) = 1000 millimeters (mm)
10 millimeters (mm) = 1 centimeter (cm)
1 inch (“ or in) = 2.5 centimeters (cm)
39.4 inches (“ or in) = 1 meter (m)
1 liter (L) = 1000 milliliters (mL) = 1 quart (qt)
1 milliliter (mL) = 1 cubic centimeter (cc)
1 teaspoon (t or tsp) = 5 milliliters (mL)
1 ounce (oz) = 30 milliliters (mL)
Weight
Weight Conversion
1 gram (g) = 1000 milligrams (mg)
1 kilogram (Kg) = 1000 grams (g)
1 kilogram (kg) = 2.2 pounds (lbs)
1 pound (lb) = 16 ounces (oz)
Temperature
Fahrenheit to Celsius (0F – 32) ÷ 1.8 = 0C
Celsius to Fahrenheit (0C x 1.8) + 32 = 0F
Terms and abbreviations







inch (“ or in)
foot (‘ or ft)
yard (yd)
teaspoon (t or tsp)




tablespoon (T or tbsp)
ounce (oz)
cup (C)
pint (pt)
 quart (qt)
 ounce (oz )
 pound ( lb )
Gram (g or gm) measures mass or weight
Liter (L) measures volume or liquid
Meter (m) measures length or distance
Kilo
Centi
Milli
=
=
=
thousands
hundredths
thousandths
=
=
=
1000 times
1/100
1/1000
24 Hour Clock
Hours are numbered from 0-24. No need to use a.m. or p.m. designations. For example:
1 am
3:30 am
10 am
=
=
=
0100
0330
1000
12 noon
2:30 pm
8 pm
=
=
=
1200
1430
2000
10:15 pm
12 MN
=
=
2215
2400
Roman Numerals
Hours are numbered from 0-24. No need to use a.m. or p.m. designations. For example:
I
V
X
=
=
=
1
5
10
HT7210 Health Team Relations
Summer 2005
L
C
D
=
=
=
50
100
500
M =
1000
H.5
Medical Math
Name ____________________________________
Date _________________
MEDICAL MATH PRETEST
Fill in the blanks with the correct answer. You may use a calculator.
1.
200 cm = __________ m
2.
5 cm = __________ mm
3.
1 kg = __________ gm
4.
2 gm = __________ mg
5.
1000 ml = __________ liter
6.
1 ml = __________ cc
7.
40 centiliters = __________ deciliters
8.
10 kg = __________ lbs
9.
100 lbs = _________ kg 45.5
10.
1 kg = __________ ounces 35.2
11.
2 pounds = __________ ounces
12.
What is the abbreviation for Kilo? __________
13.
What is the abbreviation for Milli? __________
14.
Using the 24 hour clock, what time is 1300? __________ pm
15.
Using the 24 hour clock, what time 8 pm? __________
HT7210 Health Team Relations
Summer 2005
H.6
Medical Math
Name ____________________________________
Date _________________
HOUSEHOLD AND METRIC WORKSHEET
Fill in the blanks with the correct answer. You may use a calculator.
1.
5 m = _________________ mm
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
3 cm = ________________ mm
5 mm = ________________ cm
0.4 m = ________________ cm
600 mm = _______________ m
8 L = __________________ mL
58 mL = ________________ cc
0.5 L = _________________ cc
34 cc = _________________ mL
2 g = ___________________ mg
3000 g = ________________ kg
2 lb = ___________________ oz
64 oz = __________________ lb
4 Kg = ___________________ g
.02 g = _________________ mg
Write out the word for the following abbreviations. Words must be spelled correctly.
O
16.
F = _______________________________
17.
18.
19.
20.
21.
22.
23.
24.
25.
g = ________________________________
mg = ______________________________
lb = _______________________________
oz = _______________________________
L = ________________________________
mL = ______________________________
qt = _______________________________
cm = ______________________________
“ = ________________________________
Write out the abbreviation for the following terms.
26.
27.
yard = _________________
28.
kilogram = ______________
tablespoon = ____________
HT7210 Health Team Relations
Summer 2005
29.
30.
31.
foot = __________________
cup = __________________
pint = __________________
H.7
Medical Math
Name ____________________________________
Date _________________
CONVERSION PROBLEMS
Before you begin, write down the eight conversions you memorized for this unit.
1.
2.
3.
4.
______________________________
______________________________
______________________________
______________________________
5.
6.
7.
8.
______________________________
______________________________
______________________________
______________________________
Fill in the blanks with the correct answer. You may use a calculator.
9.
12 in = ________ cm
10.
19.7 in = _______ m
11.
3 tsp = ________ mL
12.
12 oz = ________ cc
13.
2 qt = _________ cc
14.
22 lb = ________ kg
15.
99OF = ________ OC
16.
40OC = ________ OF
17.
50 cm = _______ in
18.
9 m = _________ in
19.
25 mL = _______ tsp
20.
120 mL = ______ oz
21.
4000 cc = ______ qt
22.
45 kg = ________ lb
23.
3 ½ qt = _______ mL
24.
100OF = ________ OC
25.
0OC = ________ OF
HT7210 Health Team Relations
Summer 2005
H.8
Medical Math
Name ________________________________
Date _____________
AROUND THE HOUSE
Look around the house for household items. Record the name of the
product and the weight or volume in both the metric measure and household
measures. Two examples are given for you.
Product
Metric
Household
Men’s Aftershave
100 ml
3.4 fl oz
Diet Coke
2 liters
67.6 fl oz
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Were you able to recognize the abbreviations used on most of the products? _________
Were there any abbreviations used that you were not familiar with? ______
If yes, what were they, and were you able to figure out what they meant?
Did you learn anything from this activity?
HT7210 Health Team Relations
Summer 2005
H.9
Medical Math
Name ____________________________________
Date _________________
ROMAN NUMERALS AND THE 24 HOUR CLOCK
Fill in the blanks with the correct answer.
Arabic to Roman Numerals:
1.
21 = ______
4.
6 = ______
2.
38 = ______
5.
219 = _____
3.
550 = _____
6.
66 = _____
Roman Numerals to Arabic:
7.
XXVIII = ______
10.
CD = _____
8.
CCCXLII = _____
11.
IX = _____
9.
XXXIX = ______
12.
LIV = _____
Word Problems:
13.
Leslie was born in MCMLXXXI. In what year will she turn 24? ________
14.
In Roman Numerals, in what year was the Declaration of Independence
written in America? ___________________
15.
Someone who turns 100 this year would have been born in what year? (In
Roman Numerals.) ____________
16.
The game started at 1830. They played four eight-minute quarters, and
halftime lasted for 30 minutes. At what time was the game over? _________
17.
Cindy went into labor at 2300. She was in labor for four hours before leaving
the house to drive 1 ½ hours to the hospital. At what time did she arrive at the
hospital? _________
18.
Steve is the event chairman for the EMT event. The event is scheduled to
begin at 1230. There are 12 teams scheduled. Each team takes 15 minutes.
If the event runs on time, at what time will it end? __________
19.
Mary wants to serve dessert at 1300. If it takes 30 minutes to prepare the
cake, one hour to bake it, and 15 minutes to cool, at what time should she
begin? ___________
20.
A plane leaves Raleigh at 1915. It takes 3 ½ hours to fly to Dallas. At what
time will the plane arrive in Dallas? ____________ (Hint: Dallas is on
Central Standard Time)
HT7210 Health Team Relations
Summer 2005
H.10
Medical Math
HT7210 Health Team Relations
Summer 2005
H.11
Medical Math