6.EE.5. Understand solving an equation or inequality as a process of answering a question: which values from a specified set, if any, make the equation or inequality true? Use substitution to determine whether a given number in a specified set makes an equation or inequality true.
In elementary algebra, the quadratic formula is a formula that provides the solution(s) to a quadratic equation. There are other ways of solving a quadratic equation instead of using the quadratic formula, such as factoring (direct factoring, grouping, AC method), completing the square, graphing and others.
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I try to take a more intuitive and graphical approach to algebra tutoring. Learning to graph equations is the key to understanding almost all of these topics. The TI-83, TI-84, and TI-89 calculators can greatly help in this area! And they are also good for solving systems of linear equations and matrix math.
Linear Equation Solver - This free online calculator solves linear equations for a single variable, and lists step-by-step how to manually solve the equation. LCM Calculator - Find the least common multiple for between two and four numbers with this calculator.
Algebra Balance Scales - Negatives – Solve simple linear equations using a balance beam representation. Algebra Tiles – Visualize multiplying and factoring algebraic expressions using tiles. Base Blocks – Illustrate addition and subtraction in a variety of bases.
Suitable for grades 3 - 4, Math Mountain lets you solve division problems to climb the mountain. Reach the peak to win. Play Math Mountain online, here.
Free graphing calculator instantly graphs your math problems. Mathway. Visit Mathway on the web. Download free on Google Play. Download free on iTunes. Download free on Amazon. Download free in Windows Store. get Go. Graphing. Basic Math. Pre-Algebra. Algebra. Trigonometry. Precalculus. Calculus. Statistics.
Our free online Percent Calculator calculates percentages such as ratios, fractions, statistics, and percentage increase or decrease. The calculations and formulas (press the '?' button) are calculated automatically as you type!