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Worksheets 1st Grade Math Worksheets Printable 1st grade math worksheets: addition and subtraction within 20, missing numbers, and word problems, with an answer key. Worksheets 2-Digit Multiplication Worksheets Print long multiplication practice: 2-digit by 1-digit, 2-digit by 2-digit, and 3-digit problems, with an answer key. Worksheets 2nd Grade Math Worksheets Printable 2nd grade math worksheets: two-digit addition and subtraction, place value, and word problems, with an answer key. Worksheets 3rd Grade Math Worksheets Printable 3rd grade math worksheets: multiplication and division facts, three-digit addition and subtraction, and word problems, with an answer key. Worksheets 4th Grade Math Worksheets Printable 4th grade math worksheets: multi-digit multiplication, long division, fractions, factors, and word problems, with an answer key. Worksheets 5th Grade Math Worksheets Printable 5th grade math worksheets: decimals, fractions, order of operations, multi-digit multiplication and division, with an answer key. Worksheets 6th Grade Math Worksheets Printable 6th grade math worksheets: fractions, decimals, percents, ratios, integers, and expressions, with an answer key. Worksheets 7th Grade Math Worksheets Printable 7th grade math worksheets: rational numbers, expressions and equations, proportions, percent, circles, and probability, with an answer key. Worksheets 8th Grade Math Worksheets Printable 8th grade math worksheets: exponents, scientific notation, square roots, linear equations, slope, and the Pythagorean theorem, with an answer key. Worksheets Adding and Subtracting Fractions Worksheets Print practice adding and subtracting fractions: same and different denominators, and mixed numbers, with an answer key. Worksheets Addition and Subtraction Worksheets Print addition and subtraction practice with basic facts, two-digit problems, word problems, and an answer key. Generators Addition Worksheet Generator Generate printable addition worksheets with answer keys. Choose the number range and how many problems. Calculators Age Calculator Calculate your exact age in years, months, and days from your date of birth, using today's date. Calculators Angle Converter Convert angles between degrees, radians, gradians, and turns. Calculators APY Calculator Find the annual percentage yield (APY) from a nominal rate and compounding frequency. Shows the formula and yearly earnings. Calculators Area Converter Convert area between square meters, square feet, square kilometers, acres, and hectares. Calculators Aspect Ratio Calculator Find the simplified aspect ratio of a width and height, like 1920 x 1080 = 16:9. Calculators Average Calculator Find the average (mean) of a list of numbers, or a weighted average where some count more. Shows the steps. Calculators Average Percentage Calculator Find the average of several percentages, or a weighted average where some count more. Shows the steps. Calculators BMI Calculator Calculate your Body Mass Index from height and weight, in metric or imperial units, and see which BMI category it falls in. Calculators CAGR Calculator Calculate the compound annual growth rate (CAGR) from a start value, end value, and number of years. Games Can You Guess Random? Tap 0 or 1 and try to be truly random. A simple predictor guesses your next tap from your past patterns - and usually beats 50%. See how unpredictable you can be. Calculators Circle Calculator Find a circle's radius, diameter, circumference, and area from any one of them. Shows the formulas. Calculators Combination and Permutation Calculator Calculate combinations (nCr) and permutations (nPr) for choosing r items from n. Shows the formula and steps. Worksheets Comparing and Ordering Numbers Worksheets Print practice comparing numbers with <, >, =, and ordering whole numbers and decimals, with an answer key. Calculators Compound Interest Calculator Estimate compound interest and final amount with different compounding frequencies. Calculators Cube Root Calculator Find the cube root of a number, including negatives, with perfect-cube detection and the steps. Calculators Data Storage Converter Convert digital storage between bits, bytes, kilobytes, megabytes, gigabytes, and terabytes. Calculators Date Calculator Add or subtract days from a date to find the resulting date and weekday. Calculators Days Between Dates Calculator Count the number of days between two dates, shown as days and as weeks plus days. Problems Decimal Problems With Answers Practice decimal problems with answers - adding, subtracting, multiplying, dividing, rounding, and word problems. Calculators Decimal to Fraction Calculator Convert a decimal to a fraction in simplest form, with the mixed number and the steps. Generators Decimals Worksheet Generator Generate printable decimal worksheets for adding, subtracting, and multiplying decimals, each with an answer key. Worksheets Decimals Worksheets Print decimal practice: adding, subtracting, and multiplying decimals, plus word problems and an answer key. Calculators Depreciation Calculator Work out how much an asset loses in value each year. Straight line, declining balance, and double declining balance methods, with a year-by-year schedule and editable presets for a car, phone, laptop, and more. Calculators Discount Calculator Find the sale price and how much you save, add sales tax, or stack two discounts, all from the original price and percent off. Calculators Distance and Midpoint Calculator Find the distance between two points and their midpoint, with the formulas and steps. Generators Division Worksheet Generator Generate printable division worksheets with answer keys. Pick a divisor, the range, and how many problems. Worksheets Division Worksheets Print division practice with basic facts, dividing by numbers up to 12, word problems, and an answer key. Worksheets Elapsed Time Worksheets Print elapsed-time practice: find how much time passes, the end time, and solve word problems, with an answer key. Calculators EMI Calculator Estimate an equated monthly installment using principal, annual interest rate, and loan tenure in months. Calculators Energy Converter Convert energy between joules, kilojoules, calories, kilocalories, watt-hours, kilowatt-hours, and BTU. Calculators Equivalent Fractions Calculator Generate equivalent fractions by multiplying the numerator and denominator by the same number. Calculators Exponent Calculator Raise any number to any power, including negative and fractional exponents. Shows what the power means. Problems Exponent Problems With Answers Practice exponent problems with answers - squares, cubes, powers, negative and zero exponents, and word problems. Generators Exponents Worksheet Generator Generate printable exponent worksheets - squares, cubes, and powers - each with an answer key. Set the number range and how many problems. Calculators Factorial Calculator Calculate the factorial of a whole number (n!), with exact results and the steps. Calculators Fibonacci Retracement Calculator Enter a swing high and low to get the Fibonacci retracement levels (23.6%, 38.2%, 50%, 61.8%, 78.6%) and extension targets (127.2%, 161.8%, 200% and more). Calculators Fraction Calculator Add, subtract, multiply, and divide fractions with simplified answers. Problems Fraction Problems With Answers Practice fraction problems with answers, including simplifying, equivalent fractions, operations, and word problems. Calculators Fraction to Decimal Calculator Convert a fraction to a decimal and a percentage by dividing the numerator by the denominator. Calculators Fraction to Percent Calculator Convert a fraction to a percent by dividing and multiplying by 100. Shows the steps. Generators Fraction Worksheet Generator Generate printable fraction worksheets for adding, subtracting, multiplying, and dividing fractions, each with a simplified answer key. Worksheets Fraction Worksheets Print fraction practice for simplifying fractions, equivalent fractions, addition, subtraction, and answer keys. Worksheets Fractions of a Number Worksheets Print practice finding a fraction of a whole number, like 2/3 of 12, with word problems and an answer key. Calculators Frequency Converter Convert frequency between hertz, kilohertz, megahertz, and gigahertz. Calculators Fuel Economy Converter Convert fuel economy between miles per gallon, liters per 100 km, and kilometers per liter. Calculators GCF and LCM Calculator Find the greatest common factor (GCF) and least common multiple (LCM) of two or more whole numbers. Calculators GPA Calculator Calculate your GPA on the 4.0 scale from course grades and credit hours. Add as many courses as you need. Calculators Grade Calculator Turn a test score into a percentage and letter grade, or find the marks needed for a target. Shows the steps. Games Guess the Next Number A free number series game: spot the rule behind a sequence and type the next number. Ten questions, each rule explained, and your best score saved. Games Higher or Lower A simple higher-or-lower number game: guess whether the next number from 1 to 100 will be higher or lower, and build the longest streak you can. Worksheets Integers Worksheets Print integer practice: adding, subtracting, multiplying, and dividing positive and negative numbers, with an answer key. Calculators Interactive Wave Generator A visual sine wave playground: a spinning circle draws the wave, add waves to watch them combine, see them as a 3D helix, and turn on sound to hear them. Calculators Investment Payback Calculator Find out when an investment pays back: enter the capital, your average monthly income and cost, and see the payback period, a month-by-month table, and a chart - with or without the interest you give up. Calculators Investment Plan Comparison Calculator Compare investment plans. Same starting amount and time, different returns, to see which ends up ahead. Worksheets Kindergarten Math Worksheets Printable kindergarten math worksheets: counting, adding and subtracting within 10, comparing, and number order, with an answer key. Calculators Length Converter Convert length between millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles. Calculators Loan Calculator Estimate a monthly loan payment, total paid, and total interest using loan amount, rate, and term. Calculators Logarithm Calculator Calculate the logarithm of a number in any base using the change-of-base formula. Shows the steps. Calculators Long Division Calculator Divide whole numbers to get the quotient and remainder, with the long-division steps shown. Games Make 24 The classic Make 24 math game: use all four numbers once, with + - x and division, to reach 24. Every set is solvable, with a hint and your best streak saved. Games Math Speed Test A free mental math game and timed speed test. Choose addition, subtraction, multiplication, division, or mixed, set a level, and beat your best score. Problems Math Word Problems With Answers Practice math word problems with answers: addition, subtraction, multiplication, division, and multi-step problems. Calculators Mean, Median, Mode Calculator Find the mean, median, mode, and range of a list of numbers, with the steps shown. Calculators Mixed Number Calculator Convert an improper fraction to a mixed number, or a mixed number to an improper fraction. Shows the steps. Worksheets Mixed Word Problems Worksheets Print mixed math word problems using addition, subtraction, multiplication, and division, with an answer key. Calculators Modulo Calculator Find a mod b, the remainder after dividing a by b. Shows the quotient and the steps. Worksheets Money Worksheets Print money practice: adding amounts, making change, costs of multiple items, and word problems, with an answer key. Generators Multiplication Worksheet Generator Generate printable multiplication worksheets with answer keys. Pick a times table, the range, and how many problems. Worksheets Multiplication Worksheets Print multiplication practice with basic facts, times tables up to 12, word problems, and a full answer key. Calculators Number Base Converter Convert a number between binary, octal, decimal, and hexadecimal. Shows all four at once. Games Number Bonds Game A number bonds math game against the clock: a number appears and you type what makes it up to 10, 20, 50, or 100. How many can you do in 60 seconds? Games Number Memory Test A free number memory game: a number flashes on screen, then you type it back from memory. Each round adds a digit - how many can you remember? Beat your best. Worksheets Number Patterns and Skip Counting Worksheets Print number pattern and skip counting practice: continue the pattern, find the rule, and fill missing numbers, with an answer key. Calculators Number to Words Converter Spell out any number in words, including decimals and negatives. Useful for writing checks, forms, and legal documents. Generators Order of Operations Worksheet Generator Generate printable order-of-operations (PEMDAS) worksheets with and without parentheses, each with an answer key. Worksheets Order of Operations Worksheets Print order of operations practice (PEMDAS / BODMAS): parentheses, exponents, and multi-step expressions, with an answer key. Calculators Percent Error Calculator Find the percent error between a measured value and the true value. Shows the formula and steps. Calculators Percent to Fraction Calculator Convert a percent to a fraction in simplest form, with the mixed number and the steps. Calculators Percentage Calculator Calculate percentages, find what percent one number is of another, or work backward from a percentage. Calculators Percentage Decrease Calculator Find the percentage decrease from an original value to a new smaller value. Calculators Percentage Increase Calculator Find the percentage increase from an original value to a new larger value. Generators Percentage Problem Generator Generate printable percentage problems with an answer key for quick practice. Problems Percentage Problems With Answers Practice percentage problems with answers, including easy, medium, word, and challenge questions. Worksheets Percentage Worksheets Print percentage practice with basic percent questions, percent change problems, word problems, and answer keys. Worksheets Place Value Worksheets Print place value practice: digit values, expanded form, and reading numbers, with an answer key. Calculators Power Converter Convert power between watts, kilowatts, megawatts, and horsepower. Calculators Pressure Converter Convert pressure between pascals, kilopascals, bar, atmospheres, psi, and mmHg. Calculators Prime Factorization Calculator Break a whole number into its prime factors, shown with exponents and expanded. Shows the steps. Games Prime Number Game A quick-fire prime numbers math game: a number flashes up and you decide whether it is prime, even, or a multiple of 3. Score as many as you can in 60 seconds. Calculators Probability Calculator Find the probability of a single event, combine two independent events, or repeat one event over multiple tries. Shows the chance as a percentage, fraction, decimal, and odds. Calculators Profit Margin Calculator Find profit, profit margin, and markup from a cost and selling price. Shows the formulas and steps. Calculators Pythagorean Theorem Calculator Find the hypotenuse or a missing leg of a right triangle using the Pythagorean theorem. Shows the steps. Calculators Quadratic Equation Calculator Solve ax² + bx + c = 0 with the quadratic formula. Shows the discriminant and real or complex roots. Calculators Random Number Generator Generate random numbers in any range, roll dice, or flip a coin. Choose how many and whether numbers can repeat. Calculators Ratio Calculator Simplify a ratio to its lowest terms, or solve a proportion a : b = c : ?. Shows the steps. Problems Ratio Problems With Answers Practice ratio problems with answers - simplifying ratios, equivalent ratios and proportions, sharing in a ratio, and word problems. Generators Ratio Worksheet Generator Generate printable ratio worksheets - simplifying ratios and solving proportions - each with an answer key. Calculators Rectangle Calculator Find the area, perimeter, and diagonal of a rectangle from its length and width. Shows the formulas. Calculators ROI Calculator Calculate return on investment (ROI) and net gain from an initial cost and final value. Shows the steps. Calculators Roman Numeral Converter Convert numbers to Roman numerals and Roman numerals to numbers, from 1 to 3999. Shows how each numeral is built. Calculators Rounding Calculator Round a number to the nearest whole number, tenth, hundredth, ten, hundred, or thousand. Shows the result. Worksheets Rounding Worksheets Print rounding practice: round to the nearest ten, hundred, whole number, and tenth, with word problems and an answer key. Calculators Salary Calculator Convert pay between hourly, daily, weekly, monthly, and yearly. Set your own hours and weeks worked. Currency-agnostic. Calculators Sales Tax Calculator Add sales tax to a price or remove it from a total. Shows the tax amount and the steps. Calculators Savings Goal Calculator Find how much to save each month to reach a goal, like a million, given your timeline and expected return. Calculators Scientific Notation Calculator Convert a number to scientific notation, or scientific notation back to a standard number. Shows the steps. Calculators Significant Figures Calculator Round a number to N significant figures, or count the significant figures in a number. Calculators Simple Interest Calculator Calculate simple interest and total amount using principal, rate, and time. Calculators Simplifying Fractions Calculator Reduce a fraction to simplest form by dividing by the greatest common factor. Calculators Slope Calculator Find the slope of a line through two points, plus the line equation. Shows rise over run and the steps. Calculators Speed Converter Convert speed between km/h, mph, meters per second, feet per second, and knots. Calculators Square Root Calculator Find the square root of a number as a decimal, plus the simplified radical form for whole numbers. Shows the steps. Calculators Square Root, Step by Step See how to find a square root by hand, revealed step by step. Choose the regular long-division method or a fast approximation, and play the working through. Calculators Standard Deviation Calculator Find the standard deviation, variance, and mean of a data set, for a population or a sample. Shows the steps. Generators Subtraction Worksheet Generator Generate printable subtraction worksheets with answer keys. Choose the number range and how many problems. Calculators Surface Area Calculator Find the surface area of a box, cube, sphere, cylinder, or cone. Shows the formula and the steps. Calculators Take Profit & Stop Loss Calculator Work out take profit and stop loss prices from a % , basis points, or points offset, and see the reward-to-risk ratio. Add named levels and an optional position size. Worksheets Telling Time Worksheets Print telling-time practice: read analog clocks and draw the hands, from o'clock to the minute, with an answer key. Calculators Temperature Converter Convert temperatures between Celsius, Fahrenheit, and Kelvin. Shows all three at once with the formulas. Calculators Time Card Calculator Add up work hours from punch-in and punch-out times, minus lunch and breaks, for a weekly or biweekly timesheet. Total hours, per-week subtotals, and optional pay. Handles overnight shifts. Calculators Time Converter Convert time between seconds, minutes, hours, days, and weeks. Calculators Time Duration Calculator Find the duration between two clock times, in hours and minutes. Handles overnight spans. Games Timed Multiplication Test A free timed multiplication test and math game. Pick a times table or all of 1-12, choose a number of questions or beat the clock, and track your best score. Games Times Tables Grid A free times tables math game: fill the whole multiplication grid against the clock. Choose a grid up to 6, 9, or 12, lock in each answer, and beat your best time. Calculators Tip Calculator Work out the tip and total for any bill, and split it between people. Shows the steps. Calculators Trading Expectancy Calculator Work out a trading strategy's expectancy: enter your win rate, average win, and average loss to see the average result per trade, in R-multiples, plus the break-even win rate. Calculators Trading Strategy Monte Carlo Simulator Test a trading strategy with Monte Carlo: enter a win rate and reward:risk, and see the range of outcomes over thousands of runs - profit odds, risk of ruin, drawdown, and equity curves. Calculators Triangle Area Calculator Find the area of a triangle from its base and height, or from its three sides with Heron's formula. Calculators Trigonometry Calculator Find the sine, cosine, and tangent of an angle in degrees or radians. Calculators Unit Price Calculator Compare two items by price per unit to see which is the better value. Shows the steps. Calculators Volume Calculator Find the volume of a box, cube, sphere, cylinder, or cone. Shows the formula and the steps. Calculators Volume Converter Convert liquid volume between milliliters, liters, cubic meters, US cups, pints, quarts, gallons, and fluid ounces. Calculators Weight Converter Convert weight between milligrams, grams, kilograms, ounces, pounds, stone, and metric tons. Calculators Z-Score Calculator Find the z-score (standard score) of a value from the mean and standard deviation.
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