Algebra Tutorials!    
  Sunday 19th of May      
Scientific Notation
Notation and Symbols
Linear Equations and Inequalities in One Variable
Graphing Equations in Three Variables
What the Standard Form of a Quadratic can tell you about the graph
Simplifying Radical Expressions Containing One Term
Adding and Subtracting Fractions
Multiplying Radical Expressions
Adding and Subtracting Fractions
Multiplying and Dividing With Square Roots
Graphing Linear Inequalities
Absolute Value Function
Real Numbers and the Real Line
Monomial Factors
Raising an Exponential Expression to a Power
Rational Exponents
Multiplying Two Fractions Whose Numerators Are Both 1
Multiplying Rational Expressions
Building Up the Denominator
Adding and Subtracting Decimals
Solving Quadratic Equations
Scientific Notation
Like Radical Terms
Graphing Parabolas
Subtracting Reverses
Solving Linear Equations
Dividing Rational Expressions
Complex Numbers
Solving Linear Inequalities
Working with Fractions
Graphing Linear Equations
Simplifying Expressions That Contain Negative Exponents
Rationalizing the Denominator
Estimating Sums and Differences of Mixed Numbers
Algebraic Fractions
Simplifying Rational Expressions
Linear Equations
Dividing Complex Numbers
Simplifying Square Roots That Contain Variables
Simplifying Radicals Involving Variables
Compound Inequalities
Factoring Special Quadratic Polynomials
Simplifying Complex Fractions
Rules for Exponents
Finding Logarithms
Multiplying Polynomials
Using Coordinates to Find Slope
Variables and Expressions
Dividing Radicals
Using Proportions and Cross
Solving Equations with Radicals and Exponents
Natural Logs
The Addition Method
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Adding and Subtracting Decimals

Add: 28.5 + 44.47 + 3075.6   Subtract: 380.53 - 75
Step 1: Line up the decimal points.

Step 2: Then add or subtract.


Multiplying Decimals

Multiply 1.89 x 5.03 =

Step 1: Multiply the decimals as you would do with whole

Step 2: Then count the number of spaces of each factor being multiplied. Decimal places are the number of spaces to the right of the decimal point, There is 2 in the top factor and two in the bottom factor, so the decimal is placed 4 spaces from the right.

Step 3: Show the total number of places in your answer.


Dividing a Decimal by a Whole Number


Place the decimal point directly above its position in the problem. Then divide the same way as you divide whole numbers.

Dividing a Decimal by a Decimal Number

Example: 4.374 .03 =

Move the decimal point of the divisor (outside the bracket) as far right as you can go. Then move the decimal point in the dividend (inside the bracket) the same number of places as the divisor.

Place the decimal point directly above its position in the problem. Then divide the same way as divide whole numbers.

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