IAR Grade 8 Sample Practice Test
10 sample IAR math questions written for grade 8. Try them now — answers reveal on click. No signup required.
- 1
Geometry
Find the hypotenuse of a right triangle with legs 8 and 5.
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Answer: √89
- 2
Expressions & Equations
Solve for x: 6x - 9 = 3
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Answer: x = 2
- 3
Functions
If f(x) = 3x + 1, what is f(2)?
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Answer: 7
- 4
Algebra Bridge
What is the slope of the line y = 3x + 1?
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Answer: 3
- 5
Real-World Applications
A bank account earns 4% simple interest per year on $1,000 for 6 years. How much interest is earned?
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Answer: $240
- 6
Statistics & Probability
A scatter plot shows a strong positive trend. What does this tell you about the relationship?
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Answer: As one variable increases, the other increases.
- 7
Number System
Is √2 rational or irrational?
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Answer: Irrational
- 8
Mathematical Reasoning
If a triangle has angles 50° and 60°, what is the third angle?
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Answer: 70°
- 9
Geometry
Find the hypotenuse of a right triangle with legs 5 and 8.
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Answer: √89
- 10
Expressions & Equations
Solve for x: 4x - 2 = 18
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Answer: x = 5
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