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Rational numbers often are written as fractions, but they can also be decimals. The minus sign on a calculator is not glenco same as the subtraction sign, even though they look a lot alike. Rational numbers can be thought of as ratios or fractions.

Silas Marner George Eliot –

Buttons created at ButtonGenerator. Early mathematicians found that using letters to represent quantities simplified the problems. Integers broaden notabes number range a little bit. Zero was used by Arab mathematicians – the same people who invented Algebra.

I sometimes confuse my students because I use both ways to refer to negative numbers. It might seem simple to have a number called zero, but it was never used by the Greeks or Romans.

Student Handbook – beginning on page with green edges on its pages, algrbra provides a good review of things you should have learned in math before beginning Algebra 1. Many of the glossary words from your book are also listed here. Shearer for the web site, log-in name, and password. They allow you to include all whole numbers and their opposites.


It is usually written – and can be found near the bottom of your calculator. In all cases, rational numbers can be written as a fraction of integers.

Negative numbers are used a lot in real life. The last type of real numbers are called irrational. Algebra is the notabes “real” course in mathematics.

You do not have to be taking a math class from Mrs. You will learn how to draw graphs of straight lines and parabolas. If we let the letter a stand for anything and a little dot stand for multiply so we can know it is not the letter X we can write an equation that is always true:.

Silas Marner George Eliot

Rational numbers act rationally – they sort of make sense – at least they make sense to math people. This book is available on disk, with tutorials for use by students and parents. Some examples of rational numbers includes all of the natural numbers 1, 2, 3. It uses letters called variables to represent any value in a given formula so that it becomes a general formula that can be applied to all algebar.

School Life

In fact, you don’t have to use letters – you could use symbols or pictures if you wanted. In elementary school you learned to count things. In Algebra I we only study problems that use the real number system. Be careful when working with irrational numbers on a calculutor. The book is also available on-line. It is one way to get rid of all the words in a word problem. Zero is used to indicate none or nothing. This section provides answers to odd problems for exercises, practice quizes, and the chapter reviews.


You should write these down in your Notables book or on a Foldable. You can also use natural numbers to make lists. The Glossary has purple edges on its pages. For example, if you drive to Albuquerque you have gone about miles.

Use these to check your own work to make sure you understand how to do the assignments. The official way to read the sign in -5 is to say “negative 5”, but some gencoe say “minus 5”. Here is what you can find out about Algebra on this page:. For more about the history of zero, go to Wikipedia.

Algebra also includes some statistics and probability and a small amount of geometry. Shearer for a copy of the student disk. So what is included in the real number system?