Math & Geometry guides

• Surface Area of a Cylinder: 5 Mistakes to Avoid

  Avoid the most common errors when calculating surface area of a cylinder, with the correct formula and a worked example.

• Surface Area of a Cone: 5 Mistakes to Avoid

  Avoid the most common errors when calculating surface area of a cone, with the correct formula and a worked example.

• Surface Area of a Hemisphere: 5 Mistakes to Avoid

  Avoid the most common errors when calculating surface area of a hemisphere, with the correct formula and a worked example.

• Percentage: Your Questions Answered

  Answers to common questions about percentage: formula, inputs, examples and tips.

• What Percent Is X of Y: Your Questions Answered

  Answers to common questions about what percent is x of y: formula, inputs, examples and tips.

• Percentage Change: Your Questions Answered

  Answers to common questions about percentage change: formula, inputs, examples and tips.

• Percentage Increase: Your Questions Answered

  Answers to common questions about percentage increase: formula, inputs, examples and tips.

• Percentage Decrease: Your Questions Answered

  Answers to common questions about percentage decrease: formula, inputs, examples and tips.

• Percentage Difference: Your Questions Answered

  Answers to common questions about percentage difference: formula, inputs, examples and tips.

• Average (Mean): Your Questions Answered

  Answers to common questions about average (mean): formula, inputs, examples and tips.

• Median: Your Questions Answered

  Answers to common questions about median: formula, inputs, examples and tips.

• Mode: Your Questions Answered

  Answers to common questions about mode: formula, inputs, examples and tips.

• Range: Your Questions Answered

  Answers to common questions about range: formula, inputs, examples and tips.

• Standard Deviation: Your Questions Answered

  Answers to common questions about standard deviation: formula, inputs, examples and tips.

• Weighted Average: Your Questions Answered

  Answers to common questions about weighted average: formula, inputs, examples and tips.

• GCD (HCF): Your Questions Answered

  Answers to common questions about gcd (hcf): formula, inputs, examples and tips.

• LCM: Your Questions Answered

  Answers to common questions about lcm: formula, inputs, examples and tips.

• Factorial: Your Questions Answered

  Answers to common questions about factorial: formula, inputs, examples and tips.

• Square Root: Your Questions Answered

  Answers to common questions about square root: formula, inputs, examples and tips.

• Cube Root: Your Questions Answered

  Answers to common questions about cube root: formula, inputs, examples and tips.

• Exponent: Your Questions Answered

  Answers to common questions about exponent: formula, inputs, examples and tips.

• Logarithm: Your Questions Answered

  Answers to common questions about logarithm: formula, inputs, examples and tips.

• Quadratic Equation: Your Questions Answered

  Answers to common questions about quadratic equation: formula, inputs, examples and tips.

• Pythagorean Theorem: Your Questions Answered

  Answers to common questions about pythagorean theorem: formula, inputs, examples and tips.

• Fraction Simplifier: Your Questions Answered

  Answers to common questions about fraction simplifier: formula, inputs, examples and tips.

• Ratio Simplifier: Your Questions Answered

  Answers to common questions about ratio simplifier: formula, inputs, examples and tips.

• Decimal to Fraction: Your Questions Answered

  Answers to common questions about decimal to fraction: formula, inputs, examples and tips.

• Scientific Notation: Your Questions Answered

  Answers to common questions about scientific notation: formula, inputs, examples and tips.

• Rounding: Your Questions Answered

  Answers to common questions about rounding: formula, inputs, examples and tips.

• Prime Number: Your Questions Answered

  Answers to common questions about prime number: formula, inputs, examples and tips.