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Practice reading, interpreting, and comparing data using histograms and frequency polygons

Fractions whose numerators and/or denominators contain fractions are called complex fractions

When solving equations, we should simplify the expressions that make up the left and right sides before applying any properties of equality. Often, that ...

Problems that involve forming equal-sized groups can be solved by division.

Problems that involve repeated addition are often more easily solved using multiplication.

The specific gravity of a substance is often listed in tables instead of either mass density or weight density

Variables, Algebraic Thinking, and Algebraic Language

Sometimes it is possible to conclude that two triangles are congruent without having to show that three pairs of corresponding angles are congruent and three ...

More complicated equations may require using more than one property to solve it.

Similar triangles and proportions can be used to find lengths that would normally be difficult to measure.