Free online math practice
Math Practice for Adults
Return to math at a starting point that fits your goal. Refresh everyday number skills, prepare for algebra, or revisit formulas you have already learned. There is no age-based level or enrollment.
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Everyday quantities
Rebuild number confidence
Return to algebra and beyond
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Real practice. Real progress.
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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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Mental addition within 100
Totals up to 100: whole tens, no regrouping, and crossing one ten with a single digit.
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Mental subtraction within 100
Subtract within 100: whole tens, no regrouping, and crossing one ten with a single digit.
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Small exact fraction arithmetic
Adding, subtracting, multiplying, and dividing simple fractions.
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Fraction, decimal, and percent equivalences
Converting familiar fractions to percentages and percentages to fractions.
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Mental percent of a quantity
Finding common percentages of a number mentally.
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Common exact unit conversions
Exact conversions between common units of length, weight, time, and volume.
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Equivalent ratios and proportions
Equivalent ratios, proportions, and missing values.
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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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Quadratic formulas
The quadratic formula, vertex form, and axis of symmetry.
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Derivative table
Common derivative rules and standard function derivatives.
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Further reading
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