What this section covers: Basic operations, Fractions, Decimals, Ratio and proportion, Percentages, Household measures and conversions, Dosage-style word problems, Basic algebra.
10 free practice questions
Click an answer: you see at once whether it is right, with the explanation.
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Question 1What is 4,386 + 2,759?
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Answer: C — 7,145.
Add column by column with carrying: 6 + 9 = 15 (write 5, carry 1), 8 + 5 + 1 = 14 (write 4, carry 1), 3 + 7 + 1 = 11 (write 1, carry 1), 4 + 2 + 1 = 7. The sum is 7,145.
Checked against: Elsevier HESI Admission Assessment overview — Basic Math Skills: Basic operations
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Question 2Evaluate: 18 − 3 × (4 + 2) ÷ 9
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Answer: D — 16.
Parentheses first: 4 + 2 = 6. Then multiply and divide left to right: 3 × 6 = 18 and 18 ÷ 9 = 2. Finally 18 − 2 = 16. Subtracting first (18 − 3) gives the wrong answer 10.
Checked against: Elsevier HESI Admission Assessment overview — Basic Math Skills: Basic operations
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Question 3A patient drinks 3/4 of a 240 mL cup of water, 2/3 of a 180 mL cup of juice and 1/2 of a 350 mL carton of milk. What is the total intake?
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Answer: B — 475 mL.
3/4 × 240 = 180 mL, 2/3 × 180 = 120 mL and 1/2 × 350 = 175 mL. 180 + 120 + 175 = 475 mL. Adding the full containers (770 mL) ignores the fractions.
Checked against: Elsevier HESI Admission Assessment overview — Basic Math Skills: Fractions
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Question 4What is 4.83 ÷ 0.07?
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Answer: A — 69.
Move both decimal points two places to the right: 483 ÷ 7 = 69.
Checked against: Elsevier HESI Admission Assessment overview — Basic Math Skills: Decimals
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Question 5A patient's temperature readings are 98.6 °F, 99.4 °F, 101.2 °F and 100.0 °F. What is the average?
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Answer: B — 99.8 °F.
Add the readings: 98.6 + 99.4 + 101.2 + 100.0 = 399.2. Divide by 4: 399.2 ÷ 4 = 99.8 °F.
Checked against: Elsevier HESI Admission Assessment overview — Basic Math Skills: Decimals
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Question 6On a map, 1 inch represents 25 miles. How many miles do 3.5 inches represent?
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Answer: C — 87.5 miles.
Multiply the map distance by the scale: 3.5 × 25 = 87.5 miles.
Checked against: Elsevier HESI Admission Assessment overview — Basic Math Skills: Ratio and proportion
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Question 7A patient's weight drops from 160 lb to 152 lb. What is the percent decrease?
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Answer: D — 5%.
The change is 160 − 152 = 8 lb. Percent change uses the original value: 8 ÷ 160 = 0.05 = 5%. Dividing by 152 gives the wrong answer 5.3%.
Checked against: Elsevier HESI Admission Assessment overview — Basic Math Skills: Percentages
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Question 8A patient is 5 feet 4 inches tall. What is the height in inches? (1 ft = 12 in)
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Answer: B — 64 inches.
5 ft × 12 = 60 in, plus 4 in = 64 inches.
Checked against: Elsevier HESI Admission Assessment overview — Basic Math Skills: Household measures and conversions
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Question 9An oral liquid contains 125 mg per 5 mL. How many mL are needed for a 300 mg dose?
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Answer: D — 12 mL.
Set up 125 mg / 5 mL = 300 mg / x mL. Cross-multiply: 125x = 1,500, so x = 12 mL.
Checked against: Elsevier HESI Admission Assessment overview — Basic Math Skills: Dosage-style word problems
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Question 10Solve for x: 3x + 7 = 31
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Answer: D — 8.
Subtract 7 from both sides: 3x = 24. Divide by 3: x = 8.
Checked against: Elsevier HESI Admission Assessment overview — Basic Math Skills: Basic algebra
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