ATI TEAS Math Practice Test: Numbers and Operations
- Numbers and Operations
- 10 questions
- 15 minutes
This test covers the number skills that the TEAS Math section relies on. A four-function calculator is available on the real exam, but work the fraction questions by hand so you can check each step.
Tap an option to mark your answer. You can change your mind, or tap the same option again to leave the question blank. The correct answers and explanations appear when you finish the test.Tap an option to answer; tap it again to leave the question blank.
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Question 1
What is 34 + 56?
Correct answer: C
Use the common denominator 12: 9/12 + 10/12 = 19/12 = 1 7/12. Adding tops and bottoms separately gives 8/10, which is a common mistake.
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Question 2
Which fraction is equal to 0.375?
Correct answer: B
0.375 = 375/1000, and dividing the top and bottom by 125 gives 3/8. 5/8 is 0.625.
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Question 3
What is 18% of 250?
Correct answer: A
18% = 0.18, and 0.18 × 250 = 45. Answers of 4.5 or 450 come from moving the decimal point the wrong number of places.
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Question 4
Which list orders the numbers from least to greatest?
Correct answer: B
Convert to decimals: 0.58, 3/5 = 0.6, 62% = 0.62 and 5/8 = 0.625. That order goes from least to greatest.
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Question 5
A unit keeps a nurse-to-patient ratio of 1 : 4. How many nurses are needed for 28 patients?
Correct answer: C
Each nurse covers 4 patients, so 28 ÷ 4 = 7 nurses. Multiplying 28 × 4 = 112 reverses the ratio.
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Question 6
A liquid medication contains 250 mg in every 5 mL. The order is for 400 mg. How many milliliters should be given?
Correct answer: B
Set up the proportion 250/5 = 400/x, so x = 400 × 5 ÷ 250 = 8 mL. Dividing 250 by 400 and multiplying by 5 gives 3.1 mL, which flips the ratio.
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Question 7
The price of a box of gloves rises from $80 to $92. What is the percent increase?
Correct answer: D
The increase is $12, and 12 ÷ 80 = 0.15 = 15%. Dividing by the new price (12 ÷ 92) gives about 13%, which uses the wrong base.
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Question 8
What is 212 ÷ 34?
Correct answer: D
Write 2 1/2 as 5/2 and multiply by the reciprocal: 5/2 × 4/3 = 20/6 = 3 1/3. Multiplying 5/2 × 3/4 instead gives 15/8 = 1 7/8.
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Question 9
What is the value of 6 + 4 × (9 − 3)2 ÷ 8?
Correct answer: C
Parentheses first: 6, then the exponent: 36. Then 4 × 36 = 144, 144 ÷ 8 = 18, and 6 + 18 = 24. Adding 6 + 4 first leads to 45.
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Question 10
What is −7 + 12 − (−5)?
Correct answer: A
−7 + 12 = 5, and subtracting −5 is the same as adding 5, so 5 + 5 = 10. Treating − (−5) as −5 gives 0.
Questions you leave blank are not counted as wrong.
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