spacer

spacer spacer spacer

Ask Dr. Math: Selected answers to common questions
 
spacer
Dr. Math Home || Elementary || Middle School || High School || College || Dr. Math FAQ
spacer
spacer  About Mathematics
      Was Math Invented or Discovered?
      What is Mathematics?
    Mathematics and...  Art /  Law
       Medicine /  Music /  Poetry

spacer  Algebra
      Absolute Value
      Asymptotes
      Completing the Square
      Diophantine Equations
      Direct and Indirect Variation
      Greater Than, Less Than Symbols
      Inequalities and Negative Numbers
      Quadratic Equations
      Signs: Positive/Negative Integers
      Slope, Slope-Intercept, Standard Form
      Solving Simple Linear Equations
      Vector Questions

spacer  Arithmetic
      Casting Out Nines
      Factorial Table 1!-30!
      Flash Cards/Worksheets
      Learning to Multiply
      LCM, GCF
      Long Division
      Order of Operations
      Number Sentences
      Square Roots without a Calculator
      Table of Squares & Square Roots, 1-100
      Subtraction w/ Borrowing/Regrouping
      What's 1+1?

spacer  Calculators and Computers
      Twos Complement

spacer  Calculus
      Chain Rule
      Maximizing the Volume of a Box
      Maximizing the Volume of a Cylinder
      What is a Derivative?

spacer  Discrete Mathematics
      Four Color Map Problem
      How Many Handshakes?
      Squares in a Checkerboard
      Tournament Scheduling
      Venn Diagrams

spacer  Factoring Numbers
      Factor Table 1-60
      Prime Factorization

spacer  Fractions, Decimals, Percentages
      Adding/Subtracting Fractions
      Least Common Denominator
      Dividing Fractions
      Comparing/Ordering Fractions
      Reducing/Simplifying Fractions
      Improper Fractions, Mixed Numbers

      Dividing Decimals
      Converting Fractions to/from Decimals
      Rounding Fractions and Decimals
      Fractions and Repeating Decimals

      Finding a Percentage
      Percentage Increase/Decrease

spacer  Functions
      Composition of Functions
      Domain and Range
      Inverse of a Function
      Piecewise Functions
spacer  Geometry
      Circle Formulas
      Find the Center of a Circle
      Is a Circle a Polygon?
      Why is a Circle 360 Degrees?
      About Ellipses
      Do Cones, Cylinders Have Edges?

      Area of an Irregular Shape
      Classifying Quadrilaterals
      Polygon Diagonals
      Pythagorean Theorem Proofs
      Triangle Congruence
      Heron's Formula
      Volume of a Tank
      Latitude and Longitude
      What are Length and Width?

spacer  Measurement
      A Million/Billion Seconds
      Celsius to Fahrenheit
      Meters Squared or Square Meters?
      Metric Measurements
      Teaspoon, Ounce, Pint, Pound
      Time Zones
      Unit Conversions
      Using a Protractor, Reading a Ruler

spacer  Number Sense/Number Theory
      About Zero
      Multiplying by Zero
      Classifying Numbers
      DeMoivre's Theorem
      Googol, Googolplex
      Imaginary Numbers in Real Life
      Infinite Number of Primes?
      Number Facts
      Roman Numerals
      Sequence Strategies
      Testing for Primality
      What is 'Mod'?

spacer  Place Value, Exponents
      Chart; Large Numbers
      Negative Exponents
      Rounding Numbers
      Scientific Notation
      Significant Figures/Digits

spacer  Probability/Statistics
      Coin Flipping
      Odds vs. Probability
      Poker Probabilities
      Rolling Dice

      Bar Graph, Histogram, Pictogram
      Mean, Median, Mode, Range
      Statistics Glossaries
      Weighted Averages

spacer  Ratio/Proportion
      Mixture Problems
      What is a Ratio?

spacer  Puzzles
      1000 Lockers
      Letter+number puzzles
      Getting Across the River
      Heads, Legs: How Many Animals?
      A Hen and a Half
      Last One at the Table
      Measuring with Two Containers
      Monkeys Dividing Coconuts
      Remainder/Divisibility Puzzles
      Weighing a Counterfeit Coin
      What Color is My Hat?
 

spacer

Search the Dr. Math Library:


Find items containing (put spaces between keywords):
 
Click only once for faster results:

[ Choose "whole words" when searching for a word like age.]

all keywords, in any order at least one, that exact phrase
parts of words whole words

Submit your own question to Dr. Math

[Privacy Policy] [Terms of Use]

spacer
Math Forum Home || Math Library || Quick Reference || Math Forum Search
spacer

Ask Dr. Math ®
© 1994-2011 Drexel University. All rights reserved.
mathforum.org/
spacer The Math Forum is a research and educational enterprise of the Goodwin College of Professional Studies.
gipoco.com is neither affiliated with the authors of this page nor responsible for its contents. This is a safe-cache copy of the original web site.