Practice Grade 8 math questions about linear equations, exponents, square roots, functions, slope, geometry, the Pythagorean theorem, scientific notation, and data interpretation. Use hints when needed, choose an answer, and review the explanation after each question.
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The 10 questions on this page cover linear equations, exponent rules, square roots, slope, functions, the Pythagorean theorem, scientific notation, systems, volume, and mean. At this level, the important skill is often recognizing which representation makes the problem easiest.
The quiz asks for 2³ × 2⁴. Instead of multiplying 8 × 16 first, preserve the common base and combine the counts of factors.
The points (2, 3) and (6, 11) define the same slope no matter which point you start from, as long as numerator and denominator use the same direction.
For y = 3x − 2, substituting x = 5 means the function applies “multiply by 3, then subtract 2.”
The current triangle has legs 9 and 12. The hypotenuse must be longer than either leg, and the square relationship identifies it exactly.
To rewrite 0.00056, move the decimal until the leading factor is between 1 and 10. Moving four places to the right requires a power of 10⁻⁴.
In x + y = 12 and x − y = 4, the y-terms are already opposites. That makes elimination the shortest route.
Instead of treating the score as one number, group mistakes by the kind of mathematics involved.