Flashcards: Mastering Algebra, Geometry, and Ratios — 24 cartões

Expression — role?

A mathematical phrase combining numbers, variables, and operations.

Proportion — equation?

States two ratios are equal.

Angles around a point?

Sum to 360°.

Simplify — process?

Combine like terms or reduce expressions to simplest form.

Angles — sum in triangle?

180° for all triangles.

Expanding brackets — mechanism?

Distribute outside term across all inside terms.

Sequence — pattern?

Ordered list of numbers following a specific rule.

Sequence rule — purpose?

Defines how to find each term based on position n.

Percentage — meaning?

Number per hundred, expressed with % symbol.

Substitution — purpose?

Evaluate expressions or solve equations by replacing variables with numbers.

Vertical angles — property?

Opposite angles are equal when lines intersect.

Adding fractions — requirement?

Common denominator or find one before adding.

Fractions — representation?

Part of a whole, numerator over denominator.

Variables — definition?

Symbols representing unknowns or changing values.

Solving equations — goal?

Find the value of the variable that makes the equation true.

Perimeter — measure?

Total distance around a shape.

Ratio — comparison?

Expresses how many times one quantity contains another.

Area — measure?

Surface covered by a shape, in square units.

Place value — significance?

Value of a digit depending on its position.

Simplify fractions — method?

Divide numerator and denominator by their GCD.

Angles in parallel lines?

Corresponding and alternate angles are equal.

Convert fraction to percentage?

Divide numerator by denominator, then multiply by 100.

Decimals — value?

Numbers with a decimal point indicating parts of a whole.

Angles on a straight line?

Sum to 180°.