More about the four rules of arithmetic. Learn pre-algebra for freeall of the basic arithmetic and geometry skills needed for algebra. In the following practice questions you are asked to cross-multiply to compare fractions to find out which is greater or less.
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Coolmath Pre-Algebra has a ton of really easy to follow lessons and examples. Work out what to remove to get x Remove it by doing the opposite adding is the opposite of subtracting Do that to both sides. Pre-Algebra Pre-Algebra Practice Questions. One small step at a time with lots of repetition to help each concept sink in so youll be ready for the next.