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Pre-Algebra
Build the number skills that later algebra depends on. Use the sections below to strengthen each part of your foundation, or jump directly to the lesson you want to review.
Arithmetic foundations
Build confidence with the four basic operations and the factors that underpin later work with fractions and algebra.
Fractions, decimals & percentages
Learn the different ways numbers can be represented, how they connect and how to move confidently between them.
Number rules & structure
Extend your number skills to negatives, absolute value, powers and the rules used to evaluate expressions correctly.
Ratios & measurement
Apply your number skills to comparisons, quantities, unit conversions and practical measurement.