Praxis Core Math Practice: 10 MCQs with Answers and Explanations
Preparing for the Praxis Core Math test? Regular practice can help you become more comfortable with percentages, equations, ratios, averages, geometry, probability, and number patterns.
Below are 10 original practice questions. Try to solve each question before checking the answer and explanation.
1. What is 25% of 80?
A) 15
B) 20
C) 25
D) 30
Answer: B) 20
Explanation:
25% is equal to 0.25.
0.25 × 80 = 20.
2. If 3x + 7 = 22, what is the value of x?
A) 3
B) 4
C) 5
D) 6
Answer: C) 5
Explanation:
Subtract 7 from both sides:
3x = 15
Divide by 3:
x = 5
3. A ratio is 3:5. If the first quantity is 18, what is the second quantity?
A) 24
B) 27
C) 30
D) 36
Answer: C) 30
Explanation:
3 parts correspond to 18, so one part is 6.
The second quantity has 5 parts:
5 × 6 = 30
4. What is the mean of 6, 8, 10, and 16?
A) 9
B) 10
C) 11
D) 12
Answer: B) 10
Explanation:
Add the numbers:
6 + 8 + 10 + 16 = 40
There are 4 numbers:
40 ÷ 4 = 10
5. What is 3/4 + 2/3?
A) 5/7
B) 13/12
C) 17/12
D) 19/12
Answer: C) 17/12
Explanation:
The least common denominator is 12.
3/4 = 9/12
2/3 = 8/12
Therefore:
9/12 + 8/12 = 17/12
6. A rectangle has a length of 12 units and a width of 5 units. What is its area?
A) 17 square units
B) 34 square units
C) 60 square units
D) 120 square units
Answer: C) 60 square units
Explanation:
Area of a rectangle = length × width.
12 × 5 = 60 square units
7. If y = 2x + 3, what is y when x = 4?
A) 8
B) 9
C) 11
D) 12
Answer: C) 11
Explanation:
Substitute x = 4:
y = 2(4) + 3
y = 8 + 3
y = 11
8. What is the probability of rolling an even number on a fair six-sided die?
A) 1/6
B) 1/3
C) 1/2
D) 2/3
Answer: C) 1/2
Explanation:
The even outcomes are 2, 4, and 6. There are 3 favorable outcomes out of 6 possible outcomes.
3/6 = 1/2
9. An item costs $50 and is discounted by 20%. What is the sale price?
A) $30
B) $35
C) $40
D) $45
Answer: C) $40
Explanation:
20% of $50 is:
0.20 × 50 = $10
Subtract the discount:
$50 − $10 = $40
10. What is the next number in the sequence?
4, 9, 14, 19, ___
A) 22
B) 23
C) 24
D) 25
Answer: C) 24
Explanation:
Each number increases by 5:
4 → 9 → 14 → 19 → 24
Answer Key
| Question | Answer |
|---|---|
| 1 | B |
| 2 | C |
| 3 | C |
| 4 | B |
| 5 | C |
| 6 | C |
| 7 | C |
| 8 | C |
| 9 | C |
| 10 | C |
Final Tip
When practicing for Praxis Core Math, focus on understanding why an answer is correct rather than memorizing the answer choice. Work through each problem yourself first, then use the explanation to check your method.
Note: These are original practice questions created for study purposes and are not official Praxis test questions. Test content and format may vary.
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