Free online math practice
Prealgebra Math Practice
Refresh the number relationships that lead into algebra: factors, powers, signed arithmetic, proportions and simple equations.
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About this grouping
Use inverse operations and exact number forms before working toward fluent recall. These available topics support prealgebra practice without replacing concept instruction.
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Each Start opens that topic’s available practice. This grouping does not launch a combined session or enroll you in a course.
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Division within 100
Divide by 1 to 10 with whole-number answers from 0 to 10.
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Division tables 11 and 12
Extend division facts to divisors or quotients 11 and 12.
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Signed integer arithmetic
Adding, subtracting, multiplying, and dividing signed numbers.
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Small exact fraction arithmetic
Adding, subtracting, multiplying, and dividing simple fractions.
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Equivalent ratios and proportions
Equivalent ratios, proportions, and missing values.
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Mental percent of a quantity
Finding common percentages of a number mentally.
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Roots and advanced powers
Square and cube roots, plus small negative and fractional powers.
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Scientific notation and powers of ten
Writing and comparing very large or very small numbers.
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Factors, GCD, and LCM
Factors, greatest common divisors, and least common multiples.
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Common exact unit conversions
Exact conversions between common units of length, weight, time, and volume.
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One-step equations
Solving one-step equations with addition, subtraction, multiplication, or division.
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Small coordinate slopes
Finding slope from small coordinate pairs and simple graphs.
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Linear function formulas
Slope-intercept and point-slope forms of a straight line.
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Plane geometry formulas
Triangle, trapezoid, and circle areas, plus circle circumference.
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Pythagorean theorem
Recall the relationship between the sides of a right triangle.
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Basic probability rules
Recall complements, unions and independent intersections.
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Nonnegative order of operations
Evaluate bounded expressions with parentheses, multiplication, division, addition and subtraction.
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Same-denominator fractions
Completing fraction sums and subtracting small fractions with the same denominator.
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Whole-number powers
Squares, cubes, and powers of two with whole-number exponents.
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Signed order of operations
Distinguish a squared negative number from the negative of a square.
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Standard deviation relationship
Recall standard deviation as the square root of variance.
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Prime and composite
Choose prime, composite or neither for numbers from 1 to 100.
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Small data median
Find the middle value of three numbers from 0 to 12.
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Angle relationships
Find complementary, supplementary and vertical angles from one given angle.
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Triangle angle sum
Find one missing triangle angle from two given angles.
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Start practicingPrealgebra
- Free to practice.
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- Progress stays on this device.