Name_______________________
Metric System Practice problems
SHOW YOUR CALCULATIONS!!!!
1 & 2. 250km = _______m =________ cm
3 & 4. 780000l = __________ml = ________L
5. 2.5 x 103m = _______________mm
6. 50 m = __________________mm
7. 45oC = _______________oF
8. 213 oF = _______________oC
Formula reference: °C= 0.56 (°F-32°)
°F=(1.8x°C)+32°
9. How many 10ml injections can be prepared from 2L of medicine? (1.5pts)
10. The average length of a ball point pen is about _______ long. (use metric units)
11. A person who is 6 feet tall is about ______ long (use metric units)
12. 1oz = 30ml. How many ml are found in a 64oz bottle of water?
13. 2 aspirin tablets = 1g. How many tablets does a 1000g bottle of aspirin contain?
14. A nickel has a mass of 5g. How much do $5.00 of nickels weigh?
15. What is the correct scientific notation for the following number: 0.0000678
16. Set up a ratio to solve for x. 9:72 as x:64
SHOW YOUR WORK- I WANT TO SEE HOW YOU GO ABOUT YOUR CALCULATIONS!!!!
Use the diagram above to answer 17 – 19 questions.
17. In the electrocardiogram above you see cycles that measure 20mm. How many complete
cycles are shown above?
18. If the paper speed is 15mm/s, how many seconds does it take to complete one cycle?
19. The cycles shown above represent a heart beat. Using the information from the answer above,
determine how many beats per minute
20. If 1kg=2.2lbs, how many pounds are you lifting if you pick up a patient who weighs
45.0kg?
21. The prescription reads 60mg/kg three times a day and the patient weighs 180lbs. How much
medication will you administer to the patient in one day? (2.2 lbs =1kg)
22. Assume that for every 1 l (microliter) of blood there are 8.5 x 108 cells. How
many white bloods cell will you collect if you draw 0.5 L of blood?