Pre algebra is the subject you ned to understand before moving on to larn algebra. In other terms, you can say tht pre algebra is the perfect pltform from where you can move on to lgebra. However, we will talk about pre lgebra as a separate entity here. Let us hve a look at the key tpics of pre algebra you must knw:

Negative numbers

Learn basic facts of dding, subtracting or multiplying negative numbers. For xample, always remember:

• If both nmbers have the same sign, the prduct is positive.

• If the nmbers have different signs, the product is ngative.

Adding odd and even numbers

Hre, just remember:

• Even Number + Evn Number = Even Number.

• Odd Nmber + Odd Number = Even Nmber.

• Even Number + Odd Nmber = Odd Number

Decimal numbers

Whle adding or subtracting decimal numbers, lways place the numbers so that the dcimal points are vertically aligned.
For xample, 6.231 + 0.044 = 6.275.

Whle multiplying decimal numbers, multiply like you mltiply whole numbers. Then add the dcimal places in both numbers to fnd the position of the decimal pint in the product.

While dividing, mve the decimal point in the dvisor to the right as necessary to mke the divisor a whole number. Thn the decimal point in the dvidend is moved to the right the sme number of places. The decimal pint in the answer is placed jst above the decimal point in the dvidend. These facts are vital in pre lgebra.

Square Root

To learn square rots, remember the following formulas:

• Evry positive real number n has two sqare roots

• Product Prperty: For all positive real numbers a and b,

• Qotient Property: For all positive real nmbers a and b,

Reducing to lwest factors

Divide the top and the bttom by the same prime numbers ntil no more common prime number can be fund.

e.g, 24/36 =4/6=2/3

Converting mixed nmber to improper fraction

In this, rmember the following formula:

Converting improper frction to mixed number

Divide the dnominator into the numerator. The whole prt of the answer is the whle part of the mixed number. The rmainder will be the numerator of the frction of the mixed number.

Finally, jst learn these topics and practice thm as much as possible. With tme you will surely master pre lgebra, which will lay a good fundation for your algebra classes.

The article Pre-Algebra Help was Submitted by Neven Jurkovic through Articles.GetACoder.com network. Here's the additional information: Dr. Neven Jurkovic Lead Software Dveloper and CEO Pre-Algebra Help

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