MSTAR grade 8 math practice test
A free practice set in the style of grade 8 math on the MSTAR: 12 questions in the online formats state tests use, marked as soon as you finish. Nothing is stored.

Grade 8 practice set
12 questions, with no clock. A new set every time, marked when you finish, with the marks by topic.
Have paper and a pencil ready for working out.

What’s on grade 8 math
We couldn’t confirm the MSTAR’s own reporting categories for grade 8 on the state’s pages, so the practice set groups its questions by topic:
The Number System
- Rational and irrational numbers
- Estimating square roots between whole numbers
Expressions and Equations
- The rules of exponents
- Square roots and cube roots
- Scientific notation
- Slope from two points or a table
- Equations with variables on both sides
- Systems of two linear equations
Functions
- What makes a relation a function
- Linear functions as models: rate of change and starting value
- Telling linear and nonlinear functions apart
Geometry
- Translations, reflections and rotations on the coordinate plane
- Similar figures and dilations
- Angles in triangles and where parallel lines are crossed
- The Pythagorean theorem
- Volume of cylinders, cones and spheres
Statistics and Probability
- Scatter plots: association and lines of fit
- Two-way tables and relative frequencies
How to help at home
Do one set, then talk
After a set, look at the ones they missed together. Ask how they got their answer before saying what the right one is.
Little and often
A short set a few times a week does more than a long session the week before.
Use real life
Prices at the store, recipes, distances and times on a trip: grade-level math is everywhere.
Keep it calm
The test checks how the year went. A good night’s sleep helps more than cramming.
Other grades
See Thena explain the ones they missed
With an account, Thena goes over every question your child gets wrong: she puts it back on her board, finds the slip and works it through out loud, then gives them one like it to do alone.
Try 3 lessons free