Math Help
An Engineers Quick References to Mathematics Algebra Help Math SheetThis algebra reference sheet contains the following algebraic operations addition, subtraction, multiplication, and division. It also contains associative, commutative, and distributive properties. Calculus Integrals Math Sheet This calculus integral reference sheet contains the definition of an integral and the following methods for approximating definite integrals: left hand rectangle, right hand rectangle, midpoint rule, trapezoid rule, and Simpson’s rule.
Murderous Maths: Tricks and Games!
Do you want to be a mind reader? Or maybe have a brain that does lightning calculations? Or maybe you just want to make your friends feel silly! Here are a few of my sneakiest tricks, and don't worry - you don't need to be a maths genius to do them! Some of these tricks are in the Murderous Maths books, but here I can let you play on my special calculators and other computer gadgets! The Fiendish Football Team Illusion! Let Riverboat Lil READ YOUR MIND! The EIGHT QUEENS Puzzle! The 7-11-13 Trick (And other miracle sums) Pass your friends a calculator - and then make them feel really silly with these simple tricks! The Predictor Cards The trick with four cut-out cards, you pick a number from 1-16 and it mysteriously appears in a hole at the back! The Missing Digit Trick Your friend does a sum then crosses a digit out - you can tell what it is without looking! The Prime Numbers Trick Make a strange prediciton using the magic of PRIME NUMBERS. What were you like when you were born?
Mathematics Fun, Fact, Fiction, Function, Fantasy
Here is a collection of mathematical activities and curiosities...enjoy them! BRAND NEW 2008 Line of Fractal Imagery -- 594 Images -- Oh Wow! ---> Show me the fractals! Guess Your Birthday! Here's a fun trick to show a friend, a group, or an entire class of people. Step 1) Have them take the month number from their birthday: January = 1, Feb = 2 etc. Have them give you the total. How It Works: Let M be the month number and D will be the day number. Thus, if you subtract off the 165, what will remain will be the month in hundreds plus the day! By the way, if you wish to know how many minutes and seconds you have been alive and lots more about when you were born, you might like to try this website ==> Birthday Calculator Divisibility Rules! To find if some number X is divisible by a certain number, test the number by using the information in the table below. *A big thank you to Torsten Sillke for these rules! Do You Love "Alphametics?" Good Mathematical Card Trick Say the total was 23. Primes!
s Math Resources - Integers: Operations with Signed Numbers
Have you ever been to a party like this? Everyone is happy and having a good time (they are ALL POSITIVE). Suddenly, who should appear but the GROUCH (ONE NEGATIVE)! The grouch goes around complaining to everyone about the food, the music, the room temperature, the other people.... What happens to the party? But wait... is that another guest arriving? What if another grouch (A SECOND NEGATIVE) appears? Now that the two grouches are together the rest of the people (who were really positive all along) become happy once again. The moral of the story is that (at least in math, when multiplying or dividing) the number of positives don't matter, but watch out for those negatives!! To determine whether the outcome will be positive or negative, count the number of negatives: If there are an even number of negatives -and you can put them in pairs- the answer will be positive, if not... it'll be negative: Negatives in PAIRS are POSITIVE; NOT in pairs, they're NEGATIVE.
Math Sites for Kids
A+ Math This site has plenty of activities and games to help beginning to intermediate math students improve their skills. Flash cards, concentration games, more. AAA Math Designed for grades K-8, this comprehensive math resource contains hundreds of pages of basic math skills and randomly-created interactive practice activities. Ask Dr. Math This is a huge resource of answers to math questions for elementary to college students. Brain Bashers Includes an interesting collection of math, logic, and language puzzles, games, and illusions, separated into easy, medium and hard categories. ChiliMath A great resource that covers key concepts in Algebra, with material that ranges from introductory to advanced. CoolMath.com Have fun while practicing your math through lots of cool games, activities, and animated demonstrations. Figure This! The Fruit Game Can you be the one who takes the last pieces of fruit from the table? Math.com Math.com offers a lot for everyone.
Percents and Decimals Worksheets
Thanks for visiting the U.S. number format version of the decimals and percents worksheets page at Math-Drills.Com where we make a POINT of helping students learn. On this page, you will find Decimals worksheets on a variety topics including comparing and sorting decimals, adding, subtracting, multiplying and dividing decimals, and converting decimals to other number formats. To start, you will find the general use printables to be helpful in teaching the concepts of decimals and place value. More information on them is included just under the sub-title. We also have European format decimals worksheets. Further down the page, rounding, comparing and ordering decimals worksheets allow students to gain more comfort with decimals before they move on to performing operations with decimals. General Use Printables The thousandths grid is a useful tool in representing operations with decimals. Thousandths GridHundredths GridsDecimal Place Value Chart Expanded Form with Decimals
Integer Number Line
In this lesson,we will look at integers and the number line. Related Topics: More Lessons on Integers Integer Worksheets Integer Games Integers Integers consist of negative integers, zero and positive integers. Example: 0 is an integer but is neither positive nor negative. Negative numbers have a ‘–’ sign before them. Example: –3 is read as “negative three” +6 or 6 is read as “positive six” or “six” Opposite of a Number The opposite of a number is the number with the sign changed. The opposite of 4 is –4 The opposite of –6 is 6 Since 0 is neither positive nor negative, the opposite of 0 is also 0. Number Line Integers can be represented on the number line. An integer on the horizontal number line is greater than the number on its left and less than the number on its right. Example: –1 is greater than –2 and less than 0. We can also write it as –1 > –2 and –1 < 0. Recall that “>” means greater than and “<” means less than. On the number line, moving to the right is positive. OML Search
Go Maths