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🧮 Algebra and Equations Practice
Algebra is about finding what is unknown. It starts as simple missing-number puzzles and grows into expressions, equations, lines and quadratics.
These topics run from finding a hiding number, to evaluating expressions and solving one-step and two-step equations, to slope, systems of equations, polynomials, factoring and parabolas.
Topics, by the age they were designed for
- Age 6Missing numberFind the number that is hiding
- Age 8Missing numbersFind the unknown factor
- Age 11Evaluate expressionsPut in the number for x
- Age 11One-step equationsSolve for x
- Age 12Two-step equationsUndo two operations
- Age 12InequalitiesSolve and watch the sign
- Age 12Simplify expressionsDistribute and combine
- Age 13Equations with x on both sidesCollect the x terms
- Age 13SlopeRise over run
- Age 13FunctionsFind f(x)
- Age 13Two equationsFind x and y together
- Age 13Lines: y = mx + bSlope and y-intercept
- Age 14Solve linear equationsBrackets and fractions
- Age 14Solve inequalitiesFlip the sign when dividing by a negative
- Age 14Standard form linesSlope and intercept from Ax + By = C
- Age 14Systems of equationsSubstitution & elimination
- Age 14PolynomialsAdd, subtract and multiply
- Age 14Factor quadraticsUndo the FOIL
- Age 14Solve quadraticsRoots and the discriminant
- Age 14Function machinesf(g(x)) and more
- Age 14ParabolasAxis of symmetry
The age on each topic is the age it was designed for, based on typical US school math. Schools in other countries teach topics in a different order, so treat the age as a guide and start where your child is comfortable.
Helping at home
- Always check an answer by putting it back into the equation.
- Whatever you do to one side of an equation, do to the other.
- Write every step. Most algebra mistakes come from skipping steps in your head.
How the practice works
Each practice round has 10 questions. Your child can type the answer or tap a choice, gets a second try, and sees the correct answer and a short hint when needed. Questions are generated fresh each time. It is free, with no sign-up and no ads, and progress and stars are saved on your device only.
Build your own course
On the Math Practice page, tap "Add to my course" on any topic from any age. Your picks are collected in one place, and a mixed round draws questions from only those topics.
More math subjects
- 🔢 Numbers & Place Value
- ➕ Add & Subtract
- ✖️ Multiply & Divide
- 🍕 Fractions
- 🔟 Decimals
- ⚖️ Percents, Ratios & Rates
- 🕒 Time & Money
- 📐 Shapes & Geometry
- ⬆️ Exponents & Roots
- 📊 Data & Probability
- 🧩 Patterns & Story Problems
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