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Quiz: Basic Math Review: Fractions, Decimals, and Percentages

By Nancy Kimmel, MSN, FNP / July 2, 2026

Quiz: Basic Math Review: Fractions, Decimals, and Percentages

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Question 1 of 59

1. Question

A clinic’s budget for medical supplies is $5,000. They have spent $3,500. What percentage of the budget has been spent?

35%
Correct Incorrect Correct answer

65%
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70%
Correct Incorrect Correct answer

75%
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Correct

Incorrect
Question 2 of 59

2. Question

A medical assistant is tracking the percentage of patients who have received a flu shot. In one week, 80 out of 200 patients received the shot. What percentage of patients is this?

20%
Correct Incorrect Correct answer

40%
Correct Incorrect Correct answer

50%
Correct Incorrect Correct answer

80%
Correct Incorrect Correct answer

Correct

Incorrect
Question 3 of 59

3. Question

A medical assistant needs to calculate a patient’s copay. The total bill is $300, and the patient’s insurance requires a 20% copay. What is the amount the patient needs to pay?

$20
Correct Incorrect Correct answer

$30
Correct Incorrect Correct answer

$60
Correct Incorrect Correct answer

$240
Correct Incorrect Correct answer

Correct

Incorrect
Question 4 of 59

4. Question

A patient’s chart indicates their temperature is 101.5°F. The provider asks you to monitor for any increase. The next reading is 102.0°F. What is the increase in temperature?

0.5°F
Correct Incorrect Correct answer

1.5°F
Correct Incorrect Correct answer

5°F
Correct Incorrect Correct answer

1.0°F
Correct Incorrect Correct answer

Correct

Incorrect
Question 5 of 59

5. Question

A patient’s weight is recorded as 150 lbs. The provider wants the weight in kilograms for a dosage calculation. Knowing that 1 kg = 2.2 lbs, what is the patient’s approximate weight in kg?

68.2 kg
Correct Incorrect Correct answer

75.0 kg
Correct Incorrect Correct answer

150.0 kg
Correct Incorrect Correct answer

330.0 kg
Correct Incorrect Correct answer

Correct

Incorrect
Question 6 of 59

6. Question

A provider instructs a patient to take 3/4 of a 500mg tablet. How many milligrams should the patient take?

125 mg
Correct Incorrect Correct answer

250 mg
Correct Incorrect Correct answer

375 mg
Correct Incorrect Correct answer

500 mg
Correct Incorrect Correct answer

Correct

Incorrect
Question 7 of 59

7. Question

A provider orders 1.5 mL of a medication to be administered. You only have 1 mL syringes. Which of the following actions is correct?

Fill one syringe to 1 mL and a second syringe to 0.5 mL.
Correct Incorrect Correct answer

Estimate 1.5 mL in a single 1 mL syringe.
Correct Incorrect Correct answer

Give the patient 1 mL since that is the syringe size.
Correct Incorrect Correct answer

Convert 1.5 mL to a fraction and use a measuring cup.
Correct Incorrect Correct answer

Correct

Incorrect
Question 8 of 59

8. Question

A study shows that a new medication reduces symptoms in 75 out of 100 patients. A different study on the same medication shows a reduction in 3 out of 4 patients. What is the relationship between these two results?

The first study shows a better result.
Correct Incorrect Correct answer

The second study shows a better result.
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The results are equivalent.
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The results are unrelated.
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Correct

Incorrect
Question 9 of 59

9. Question

Which of the following is equivalent to 0.65?

6.5%
Correct Incorrect Correct answer

13/20
Correct Incorrect Correct answer

65/10
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1/65
Correct Incorrect Correct answer

Correct

Incorrect
Question 10 of 59

10. Question

You are asked to mix a cleaning solution that requires 1 part bleach to 9 parts water. If you use 100 mL of bleach, how much water do you need?

90 mL
Correct Incorrect Correct answer

100 mL
Correct Incorrect Correct answer

900 mL
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1000 mL
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Correct

Incorrect
Question 11 of 59

11. Question

A medical assistant is asked to administer 300 mg of a medication. The medication is available in 150 mg tablets. The medical assistant administers 2 tablets. Which of the ‘six rights’ of medication administration does this action primarily fulfill?

Right patient
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Right medication
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Right dose
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Right route
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Correct

Incorrect
Question 12 of 59

12. Question

A medical assistant is preparing a dose of medication and is unsure about the calculation. What is the most appropriate action to take?

Administer the medication as calculated, but monitor the patient closely.
Correct Incorrect Correct answer

Ask the patient if the dose seems correct.
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Double-check the calculation with a licensed healthcare provider.
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Guess the dose based on previous experience.
Correct Incorrect Correct answer

Correct

Incorrect
Question 13 of 59

13. Question

A medication order is for 1.5 g of a drug. The available medication is in 500 mg capsules. How many capsules should be administered?

1 capsule
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2 capsules
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3 capsules
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4 capsules
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Correct

Incorrect
Question 14 of 59

14. Question

A patient is prescribed 250 mg of a medication that is available in a liquid form with a concentration of 500 mg/5 mL. How many mL should be administered?

1.5 mL
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2.0 mL
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2.5 mL
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5.0 mL
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Correct

Incorrect
Question 15 of 59

15. Question

A patient needs 50 mg of a drug that comes in a solution of 100 mg/2 mL. The medical assistant calculates the dose and draws up 1 mL of the solution. Is this the correct amount?

Yes, the calculation is correct.
Correct Incorrect Correct answer

No, the correct amount is 0.5 mL.
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No, the correct amount is 1.5 mL.
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No, the correct amount is 2.0 mL.
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Correct

Incorrect
Question 16 of 59

16. Question

A pediatric patient requires a dose of 60 mg of a liquid medication. The concentration of the medication is 120 mg/5 mL. The medical assistant calculates the dose to be 2.5 mL. Is this calculation correct?

Yes, the calculation is correct.
Correct Incorrect Correct answer

No, the correct dose is 2.0 mL.
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No, the correct dose is 3.0 mL.
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No, the correct dose is 5.0 mL.
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Correct

Incorrect
Question 17 of 59

17. Question

A physician orders 1000 mg of a medication. The medication is available in 500 mg tablets. How many tablets should be administered?

1 tablet
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2 tablets
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3 tablets
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4 tablets
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Correct

Incorrect
Question 18 of 59

18. Question

A physician orders a medication to be given at a dose of 400 mg. The pharmacy supplies 200 mg tablets. The medical assistant correctly calculates that 2 tablets are needed. What is the ‘Have’ in this scenario?

400 mg
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200 mg
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2 tablets
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1 tablet
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Correct

Incorrect
Question 19 of 59

19. Question

The doctor orders a dose of 75 mg of a medication. The available stock is 25 mg per tablet. Which of the following represents the correct application of the ‘Desired Over Have’ formula?

(25 mg / 75 mg) x 1 tablet
Correct Incorrect Correct answer

(75 mg / 25 mg) x 1 tablet
Correct Incorrect Correct answer

(75 mg / 1 tablet) x 25 mg
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(25 mg / 1 tablet) x 75 mg
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Correct

Incorrect
Question 20 of 59

20. Question

A doctor orders 250 mL of an antibiotic to be infused over 90 minutes. The drop factor is 10 gtt/mL. What is the flow rate in gtt/min?

28 gtt/min
Correct Incorrect Correct answer

32 gtt/min
Correct Incorrect Correct answer

35 gtt/min
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40 gtt/min
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Correct

Incorrect
Question 21 of 59

21. Question

A medical assistant is preparing to monitor an IV infusion. Where can they find the drop factor of the IV tubing?

On the IV bag
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In the patient's chart
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On the packaging of the IV tubing
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On the IV pump
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Correct

Incorrect
Question 22 of 59

22. Question

A medical assistant notices that a patient’s IV is dripping much slower than the ordered rate. What is the most appropriate initial action?

Increase the flow rate to catch up
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Recalculate the flow rate
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Notify the nurse immediately
Correct Incorrect Correct answer

Document the finding in the patient's chart
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Correct

Incorrect
Question 23 of 59

23. Question

A patient is receiving an IV infusion of a medication. The medical assistant’s role in this process is to:

Start the IV and set the flow rate
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Monitor the patient for any adverse reactions and report any issues to the nurse
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Adjust the flow rate as needed
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Discontinue the IV when the infusion is complete
Correct Incorrect Correct answer

Correct

Incorrect
Question 24 of 59

24. Question

A patient is to receive 500 mL of D5W over 4 hours. The drop factor of the IV tubing is 20 gtt/mL. What is the flow rate in gtt/min?

31 gtt/min
Correct Incorrect Correct answer

42 gtt/min
Correct Incorrect Correct answer

50 gtt/min
Correct Incorrect Correct answer

63 gtt/min
Correct Incorrect Correct answer

Correct

Incorrect
Question 25 of 59

25. Question

A patient’s IV has been infusing at 50 gtt/min for 2 hours. The drop factor is 15 gtt/mL. How much fluid has the patient received?

200 mL
Correct Incorrect Correct answer

300 mL
Correct Incorrect Correct answer

400 mL
Correct Incorrect Correct answer

500 mL
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Correct

Incorrect
Question 26 of 59

26. Question

An IV of 1 L of Normal Saline is ordered to infuse at 125 mL/hr. How long will the infusion take?

6 hours
Correct Incorrect Correct answer

8 hours
Correct Incorrect Correct answer

10 hours
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12 hours
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Correct

Incorrect
Question 27 of 59

27. Question

An IV order is for 1.5 L of Lactated Ringers to be infused over 12 hours. The drop factor is 10 gtt/mL. What is the flow rate in gtt/min?

18 gtt/min
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21 gtt/min
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25 gtt/min
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28 gtt/min
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Correct

Incorrect
Question 28 of 59

28. Question

What is the primary purpose of using microdrip tubing?

To administer large volumes of fluid quickly
Correct Incorrect Correct answer

For routine IV fluid maintenance
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To deliver small, precise amounts of medication or fluid
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When the patient is dehydrated
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Incorrect
Question 29 of 59

29. Question

Which of the following is a potential complication of an IV flow rate that is too fast?

Dehydration
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Under-dosing of medication
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Fluid overload
Correct Incorrect Correct answer

Phlebitis
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Incorrect
Question 30 of 59

30. Question

A child who weighs 44 lbs needs a medication dosed at 10 mg/kg. The child’s weight must first be converted to kilograms. What is the correct dose for this child?

20 mg
Correct Incorrect Correct answer

200 mg
Correct Incorrect Correct answer

440 mg
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44 mg
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Correct

Incorrect
Question 31 of 59

31. Question

A medical assistant is documenting the administration of a liquid medication. Which abbreviation is preferred to prevent medication errors?

cc
Correct Incorrect Correct answer

mL
Correct Incorrect Correct answer

L
Correct Incorrect Correct answer

mg
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Correct

Incorrect
Question 32 of 59

32. Question

A medical assistant is reviewing a prescription that reads “.5 mg”. What is the best practice to clarify this order?

Administer 5 mg of the medication.
Correct Incorrect Correct answer

Administer 0.5 mg, as it is written.
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Contact the provider to confirm the dose and recommend writing it as "0.5 mg".
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Assume the decimal point is a stray mark and administer 5 mg.
Correct Incorrect Correct answer

Correct

Incorrect
Question 33 of 59

33. Question

A medical assistant needs to administer 1.5 g of a medication. How many milligrams is this?

15 mg
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150 mg
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1500 mg
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0.015 mg
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Correct

Incorrect
Question 34 of 59

34. Question

A patient needs to drink 2 liters of a solution for a diagnostic test. How many milliliters is this?

20 mL
Correct Incorrect Correct answer

200 mL
Correct Incorrect Correct answer

2,000 mL
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20,000 mL
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Correct

Incorrect
Question 35 of 59

35. Question

A patient’s weight is recorded as 70 kg. What is their approximate weight in pounds (lbs)?

140 lbs
Correct Incorrect Correct answer

154 lbs
Correct Incorrect Correct answer

168 lbs
Correct Incorrect Correct answer

31.8 lbs
Correct Incorrect Correct answer

Correct

Incorrect
Question 36 of 59

36. Question

A provider orders 500 mg of a liquid medication. The concentration available is 250 mg/5 mL. How many milliliters should the medical assistant administer?

2.5 mL
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5 mL
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10 mL
Correct Incorrect Correct answer

15 mL
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Correct

Incorrect
Question 37 of 59

37. Question

The prefix “kilo-” means:

1,000
Correct Incorrect Correct answer

100
Correct Incorrect Correct answer

0.01
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0.001
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Correct

Incorrect
Question 38 of 59

38. Question

To convert from a larger unit to a smaller unit in the metric system (e.g., grams to milligrams), you should:

Move the decimal point to the left.
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Move the decimal point to the right.
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Divide by 10.
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Multiply by the patient's weight.
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Correct

Incorrect
Question 39 of 59

39. Question

Which of the following is the base unit for volume in the metric system?

Gram
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Meter
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Liter
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Milliliter
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Correct

Incorrect
Question 40 of 59

40. Question

A 5-year-old child weighs 40 lbs and is prescribed a medication at 5 mg/kg/dose. The medication is available as 100 mg/5 mL. How many mL should be administered per dose?

4.5 mL
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5.0 mL
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9.1 mL
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10.0 mL
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Correct

Incorrect
Question 41 of 59

41. Question

A child is prescribed a medication to be taken “BID”. How should the medical assistant interpret this instruction?

Once a day
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Twice a day
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Three times a day
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Four times a day
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Correct

Incorrect
Question 42 of 59

42. Question

A child weighing 20 kg is prescribed a medication with a recommended dosage of 10-15 mg/kg/day. Which of the following total daily doses falls within the safe range?

150 mg
Correct Incorrect Correct answer

250 mg
Correct Incorrect Correct answer

350 mg
Correct Incorrect Correct answer

400 mg
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Correct

Incorrect
Question 43 of 59

43. Question

A child weighs 15 kg and is prescribed a medication with a dose of 50 mg/kg/day, to be given in three divided doses. The medication is available in 125 mg/5 mL concentration. How many mL should be administered per dose?

5 mL
Correct Incorrect Correct answer

7.5 mL
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10 mL
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15 mL
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Correct

Incorrect
Question 44 of 59

44. Question

A medical assistant calculates a dose and gets a result that seems unusually high. What is the most appropriate next step?

Administer the medication as calculated.
Correct Incorrect Correct answer

Ask the parent if the dose seems correct.
Correct Incorrect Correct answer

Double-check the calculation and, if still unsure, consult with the ordering provider.
Correct Incorrect Correct answer

Give half the calculated dose to be safe.
Correct Incorrect Correct answer

Correct

Incorrect
Question 45 of 59

45. Question

A medical assistant is preparing to administer a medication to a child who weighs 33 lbs. What is the child’s weight in kilograms?

15 kg
Correct Incorrect Correct answer

16.5 kg
Correct Incorrect Correct answer

20 kg
Correct Incorrect Correct answer

72.6 kg
Correct Incorrect Correct answer

Correct

Incorrect
Question 46 of 59

46. Question

A provider orders a medication at a dose of 25 mg/kg for a child who weighs 18 kg. What is the total dose in mg?

400 mg
Correct Incorrect Correct answer

450 mg
Correct Incorrect Correct answer

500 mg
Correct Incorrect Correct answer

0.72 mg
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Correct

Incorrect
Question 47 of 59

47. Question

A provider orders cefdinir 14 mg/kg/day for a child who weighs 22 lbs. The medication is to be given once daily. The available suspension is 250 mg/5 mL. How many mL should be administered?

2.8 mL
Correct Incorrect Correct answer

3.1 mL
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5.6 mL
Correct Incorrect Correct answer

6.2 mL
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Correct

Incorrect
Question 48 of 59

48. Question

The mnemonic “K-D-V” is a study aid for pediatric dosage calculations. What does the “V” stand for?

Verify
Correct Incorrect Correct answer

Volume
Correct Incorrect Correct answer

Vitals
Correct Incorrect Correct answer

Vehicle
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Correct

Incorrect
Question 49 of 59

49. Question

Which of the following is NOT a critical component of a medication order needed for accurate dosage calculation?

Patient's age
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Medication name
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Prescribed dose
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Medication concentration
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Correct

Incorrect
Question 50 of 59

50. Question

A medical assistant calculates a dosage and determines that 4.5 mL of a liquid medication is needed. The oral syringe is marked in 0.2 mL increments. Which action demonstrates the highest level of accuracy?

Rounding the dose to 4 mL to make it easier.
Correct Incorrect Correct answer

Drawing the medication up to the line exactly between 4.4 mL and 4.6 mL.
Correct Incorrect Correct answer

Asking the nurse to administer the medication instead.
Correct Incorrect Correct answer

Rounding the dose to 5 mL to ensure the patient gets enough.
Correct Incorrect Correct answer

Correct

Incorrect
Question 51 of 59

51. Question

A medical assistant is asked to administer 650 mg of acetaminophen. The available tablets are 325 mg. The assistant calculates that two tablets are needed. Another assistant double-checks the calculation and confirms it is correct. What professional principle is being demonstrated?

Scope of practice
Correct Incorrect Correct answer

Patient confidentiality
Correct Incorrect Correct answer

The \'Three Checks\' of medication administration
Correct Incorrect Correct answer

The \'Rights\' of medication administration (e.g., right patient, right drug, right dose)
Correct Incorrect Correct answer

Correct

Incorrect
Question 52 of 59

52. Question

A medical assistant is preparing to administer a medication. The order is for 0.5 g of a drug, and the available tablets are 250 mg. How many tablets should be given?

1 tablet
Correct Incorrect Correct answer

2 tablets
Correct Incorrect Correct answer

3 tablets
Correct Incorrect Correct answer

4 tablets
Correct Incorrect Correct answer

Correct

Incorrect
Question 53 of 59

53. Question

A medical assistant is preparing to administer a medication. The order is for 0.5 g of a drug, but the tablets are labeled in milligrams. How many 250 mg tablets are required to fill the order?

1 tablet
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2 tablets
Correct Incorrect Correct answer

3 tablets
Correct Incorrect Correct answer

4 tablets
Correct Incorrect Correct answer

Correct

Incorrect
Question 54 of 59

54. Question

A patient weighing 110 lbs needs a medication dosed at 2 mg/kg. How many kilograms does the patient weigh?

45 kg
Correct Incorrect Correct answer

50 kg
Correct Incorrect Correct answer

55 kg
Correct Incorrect Correct answer

60 kg
Correct Incorrect Correct answer

Correct

Incorrect
Question 55 of 59

55. Question

A patient\’s temperature is recorded as 102.2°F. What is the equivalent temperature in Celsius?

37°C
Correct Incorrect Correct answer

38°C
Correct Incorrect Correct answer

39°C
Correct Incorrect Correct answer

40°C
Correct Incorrect Correct answer

Correct

Incorrect
Question 56 of 59

56. Question

A physician orders 1000 mL of Normal Saline to be infused over 10 hours. The IV tubing has a drip factor of 20 gtt/mL. What is the correct flow rate in drops per minute (gtt/min)?

25 gtt/min
Correct Incorrect Correct answer

33 gtt/min
Correct Incorrect Correct answer

42 gtt/min
Correct Incorrect Correct answer

50 gtt/min
Correct Incorrect Correct answer

Correct

Incorrect
Question 57 of 59

57. Question

The physician orders amoxicillin 250 mg. The supply available is a suspension with a concentration of 125 mg per 5 mL. How many milliliters should the medical assistant administer?

2.5 mL
Correct Incorrect Correct answer

5 mL
Correct Incorrect Correct answer

7.5 mL
Correct Incorrect Correct answer

10 mL
Correct Incorrect Correct answer

Correct

Incorrect
Question 58 of 59

58. Question

What is the primary reason that modern pediatric dosage calculations are based on the child\’s weight in kilograms (mg/kg)?

It is required by all EHR systems.
Correct Incorrect Correct answer

It is easier to calculate than older formulas.
Correct Incorrect Correct answer

It provides a more accurate and individualized dose based on metabolic and physiological factors.
Correct Incorrect Correct answer

It is the only method approved by the FDA.
Correct Incorrect Correct answer

Correct

Incorrect
Question 59 of 59

59. Question

Which of the following is the correct formula to convert a temperature from Celsius to Fahrenheit?

°F = (°C – 32) × 9/5
Correct Incorrect Correct answer

°F = (°C × 9/5) + 32
Correct Incorrect Correct answer

°F = (°C + 32) × 5/9
Correct Incorrect Correct answer

°F = (°C × 5/9) + 32
Correct Incorrect Correct answer

Correct

Incorrect

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