Browse all math topics covered on SolveCalc. From basic algebra to fraction conversions, find clear explanations and worked examples for every concept. Looking for how to use the SolveCalc calculator itself? See the calculator guide . How to Study for a Math Test Why rereading notes fails, how to practise properly, what to do the night before, and how to stop losing marks to careless mistakes. Why Math Feels Harder Than It Is The cumulative subject problem, the gap between following and doing, math anxiety and working memory - and what actually helps you catch up. Mental Math Tricks Worth Learning Fast percentages, tipping without a calculator, multiplying by 5 and 9, divisibility checks, and the estimation habit that catches most errors. 529 College Savings Plans Explained How 529 plans work, how much to save each month, and how compound growth turns small contributions into real college money. How Much Life Insurance Do You Need? The DIME method explained - a clear, itemized way to calculate life insurance coverage based on debt, income, mortgage, and education costs. How Much Do Braces Cost? Real cost ranges for metal, ceramic, Invisalign and lingual braces, how dental insurance coverage actually works, and payment plan math. The 50/30/20 Budget Rule Explained A simple, practical guide to splitting take-home pay into needs, wants, and savings using the 50/30/20 rule. How Much Does a Tutor Cost? Real hourly tutoring rates by format and grade level, plus how to estimate the total cost for a semester of tutoring. How Student Loan Payments Are Calculated The amortization formula behind student loan payments, current federal interest rates, and a worked example. Algebra Formulas Core algebra formulas every student needs, from linear equations to quadratic expressions. Algebraic Expressions Learn how to read, write, and simplify algebraic expressions with variables and constants. Polynomials Explained What polynomials are, how to identify them, and how to work with them step by step. Factoring Polynomials Techniques for factoring polynomial expressions including GCF, grouping, and special patterns. Fractions to Decimals Convert any fraction to a decimal quickly using division, with worked examples. Decimal to Fraction Convert any decimal to a fraction in lowest terms, with a step-by-step method and worked examples. Equivalent Fractions Understand what equivalent fractions are and how to find them by multiplying or dividing. Simplifying Fractions How to reduce any fraction to its lowest terms using the greatest common factor. Convert between mixed numbers and improper fractions, plus how to add, subtract, multiply, and divide them. Browse all algebra guides covering expressions, equations, polynomials, and more. Fractions Topics All fraction guides in one place - equivalent fractions, conversions, and operations. Algebraic Fractions How to simplify, add, subtract, multiply, and divide algebraic fractions. The Remainder Theorem Use the remainder theorem to find remainders when dividing polynomials. Dividing Polynomials Step-by-step guide to polynomial long division and synthetic division. Fractions Equivalent to 1/2 List of fractions that are equal to one half, with visual examples. Fractions Equivalent to 2/3 All fractions equivalent to two thirds explained with simple multiplication.

Fractions Equivalent to 1/4 Fractions equal to one quarter with full worked examples. 1/3 as a Percent How to convert one third to a percentage, approximately 33.33%. 2/3 as a Percent Two thirds as a percentage equals approximately 66.67%. 3/5 as a Percent Three fifths as a percentage is exactly 60%. CalcSolver Code Mode The full list of CalcSolver codes, keyboard shortcuts, and expression tricks that let you calculate faster without clicking buttons. Order of Operations (PEMDAS) PEMDAS and BODMAS explained with worked examples, a priority table, and common mistakes to avoid. How to Calculate Percentage Four types of percentage problems explained: finding a percent, percent change, reverse percentage, and more. How to find the greatest common factor and least common multiple using listing, prime factorization, and the shortcut formula. Factors and Multiples The difference between factors and multiples, how to list them, and how they connect to GCF and LCM. Divisibility Rules Quick tests to check divisibility by 2 through 10, with the logic behind each rule. Mean, Median and Mode How to calculate each type of average and when to use which — with a real-world dataset comparison. Probability Basics How to calculate the probability of an event, with simple examples and common mistakes to avoid. What prime numbers are, how to test any number for primality, a full list to 229, and why they matter. Ratios and Proportions How to simplify ratios, solve proportions using cross-multiplication, and apply them to real-world problems. Full guide to reading and writing Roman numerals — symbol chart, rules, the six subtractive pairs, and common examples. Binary, Decimal, Octal & Hex How binary, hexadecimal, octal, and decimal number systems work, with conversion examples and a quick reference chart. Scientific Notation How to write and calculate with very large or very small numbers using scientific notation. Times Tables 1 to 12 The complete 12×12 multiplication table with patterns, memory tricks, and a focused list of the hardest facts. Types of Triangles All triangle types by sides and angles, with area and perimeter formulas, Pythagorean theorem, and worked examples. Angles and Triangles Types of angles and triangles, their properties, and the rules that connect them. Area and Perimeter Formulas for area and perimeter of every common shape, with worked examples. The Pythagorean Theorem The formula, a visual proof, and worked examples for finding a missing side of a right triangle. Coordinate Geometry Points, lines, distance, and slope on the coordinate plane, with worked examples. Volume and Surface Area Formulas for volume and surface area of common 3D shapes, with worked examples. Exponents and Powers All seven exponent rules explained with examples — product, quotient, power, zero, negative, and fractional exponents. Negative Numbers Adding, subtracting, multiplying, and dividing negative numbers — with clear explanations of why the rules work.