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Articles & Books From Basic Math
An easy, straightforward, and fun guide for learning fractions and its counterparts Fractions For Dummies is the perfect strategy guide for both understanding and using one of math's most common (and most challenging) topic areas. You'll explore current solving strategies for fraction-related problems, and you'll also discover how to solve problems involving fractions' closely related cousins, decimals and percentages.
Practice makes perfect—gain math mastery with Dummies Basic Math & Pre-Algebra: 1001 Practice Problems For Dummies gives you 1,001 opportunities to practice solving problems on all the major topics in middle-grade math and Pre-Algebra—in the book and online! Get extra practice with tricky subjects, solidify what you’ve already learned, and get in-depth walk-throughs for every problem with this useful book.
Cheat Sheet / Updated 05-04-2022
When you’re working with your K–5 child to practice math skills, it can help to have a tool to remind you of some of the basics related to addition, subtraction, multiplication, division, and fractions. For those times, this Cheat Sheet can come in handy.Addition and subtractionPractice daily with your addition and subtraction flash cards until your child can successfully complete timed addition or subtraction tests, which you can find online.
Article / Updated 07-10-2023
Cross-multiplication is a handy tool for finding the common denominator for two fractions, which is important for many operations involving fractions. In the following practice questions, you are asked to cross-multiply to compare fractions to find out which is greater or less. Practice questions 1. Find the lesser fraction: 2.
Article / Updated 08-07-2023
To find the volume of a prism or cylinder, you can use the following formula, where Ab is the area of the base and h is the height: V = Ab x h Practice questions Find the volume of a prism with a base that has an area of 6 square centimeters and a height of 3 centimeters. Figure out the approximate volume of a cylinder whose base has a radius of 7 millimeters and whose height is 16 millimeters.
Article / Updated 06-28-2023
When dealing with simple algebraic expressions, you don't always need algebra to solve them. The following practice questions ask you to use three different methods: inspecting, rewriting the problem, and guessing and checking. Practice questions In the following questions, solve for x in each case just by looking at the equation.
Article / Updated 04-17-2023
You can solve algebraic equations by isolating x—that is, by getting x alone on one side of the equation and everything else on the other side. For most basic equations, isolating x involves a few steps, as you'll see in the following practice questions. Practice questions Find the value of x in the equation 9x – 2 = 6x + 7.
Article / Updated 06-06-2023
When an algebraic equation contains fractions, you can use cross-multiplication to solve the equation. The following practice questions contain two equal fractions, where you need to cross-multiply to solve them. Practice questions Rearrange the equationto solve for x. Solve the equation Answers and exp
Article / Updated 06-20-2023
A quick method for solving algebra problems is to re-arrange the equation by placing all x terms on one side of the equal sign and all constants (non-x terms) on the other side. Essentially, you're doing the addition and subtraction without showing it. You can then isolate x. Practice questions Rearrange the equation 10x + 5 = 3x + 19 to solve for x.
Article / Updated 11-21-2017
When an expression has two sets of parentheses next to each other, you need to multiply every term inside the first set of parentheses by every term in the second set. This process is called FOILing.The word FOIL is a memory device for the words First, Outside, Inside, Last, which helps keep track of the multiplication when both sets of parentheses have two terms each.