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P → E → (M / D) → (A / S)

4 min read

How to Multiply Fractions: Easy 3-Step Guide with Examples

Learn how to multiply fractions step-by-step. Straight-across numerator and denominator multiplication with simplification tips.

Order of Operations (PEMDAS): The Complete Guide with Examples

Master PEMDAS with simple examples and rules. Learn parentheses, exponents, multiplication, division, addition, and subtraction.

Read Twice → Identify Question → Translate Clue Words to Operations → Solve \& Check

How to Solve Math Word Problems: Step-by-Step Guide with Examples

Master math word problems step-by-step. Discover math clue words, the C.U.B.E.S. strategy, worked examples from elementary to algebra, and practice tips.

Grades 3–8Read Guide

If ab = cd, then a × d = b × c

How to Solve Ratios and Proportions: Step-by-Step Visual Guide

Learn how to solve ratios and proportions step-by-step. Discover cross-multiplication, ratio word problems, tape diagrams, and worked examples.

W = W1 ⟹ W1 × ab = W × ab

5 min read

How to Solve Fractions with Whole Numbers: Add, Subtract, Multiply & Divide

Master solving fractions with whole numbers. Step-by-step visual guide for multiplying, dividing (Keep-Change-Flip), adding, and subtracting fractions with integers.

Grades 4–7Read Guide

Mean (\bar{x}) = Sum of all valuesTotal count of values = \sum xn

How to Find the Mean: Step-by-Step Guide with Worked Examples

Learn how to find the mean step-by-step. Discover the mean formula, worked examples with decimals and negative numbers, and interactive practice.

Fraction to Decimal = NumeratorDenominator = Numerator ÷ Denominator

7 min read

How to Convert Fractions to Decimals: Step-by-Step Guide with Examples

Learn how to convert fractions to decimals step-by-step. Discover the division method, power of 10 shortcuts, repeating decimal bar notation, and practice.

Rectangular Prism: SA = 2(lw + lh + wh) | Cylinder: SA = 2\pi r² + 2\pi rh

8 min read

How to Find Surface Area: Step-by-Step Guide with Visual Formulas

Learn how to find surface area step-by-step. Discover surface area formulas for rectangular prisms, cylinders, and cubes with nets, examples, and practice.

Grades 6–9Read Guide

Slope-Intercept: y = mx + \mathbf{b} | Universal Rule: Set x = 0 and solve for y

How to Find the Y-Intercept: Step-by-Step Guide for Equations & Graphs

Learn how to find the y-intercept from an equation or graph. Step-by-step guide with formulas for slope-intercept form (y = mx + b), standard form (Ax + By = C), and graphs.

Grades 7–10Read Guide

The Magic Number: (b2)² ⟹ x² + bx + (b2)² = (x + b2)²

8 min read

How to Complete the Square: Step-by-Step Guide with Worked Examples

Learn how to complete the square step-by-step. Discover the magic formula (b/2)², worked examples when a = 1 and a > 1, and interactive quadratic practice.

Grades 8–11Read Guide

\mathbf{Keep} (ab) \mathbf{Change} (÷ → ×) \mathbf{Flip} (c1 → 1c) = ab × c

5 min read

How to Divide Fractions with Whole Numbers: The Easy Step-by-Step Guide

Learn how to divide fractions with whole numbers step-by-step. Easy guide to Keep-Change-Flip, visual diagrams, simplifying remainders, and interactive practice.

Grades 5–7Read Guide

The Golden Rule: -cx < d ⟹ x > -dc (Divide by negative ⟹ FLIP < to >)

7 min read

How to Solve Inequalities Step-by-Step: The Complete Guide

Learn how to solve inequalities step-by-step. Discover when to flip the inequality sign, how to graph open vs closed circles, worked examples, and interactive practice.

Grades 7–10Read Guide

Substitution: y = mx + b → Plug into Eq 2 | Elimination: (Ax + By) + (Cx - By) = Cancel y

9 min read

How to Solve Systems of Equations: Substitution & Elimination Step-by-Step

Learn how to solve systems of equations step-by-step using substitution and elimination. Worked examples, decision flowcharts, and interactive practice.

Grades 8–11Read Guide