Tools tagged "escola"

Percentage Calculator The three classic percentage problems solved instantly: X% of Y, X is what % of Y, and % change. Rule of Three Calculator Solve direct and inverse proportions: enter three known values and get the fourth, with the math spelled out. Leap Year Checker Check whether any year is a leap year, with the rule explained and the next leap years listed. Mean, Median & Mode Calculator Paste a list of numbers and get the mean, median, mode, range and totals in your browser. Standard Deviation Calculator Calculate sample and population standard deviation and variance, with every step shown. Weighted Average Calculator Average values that carry different weights — and find the grade you need on the next test. LCM & GCD Calculator Find the least common multiple and the greatest common divisor of any list of whole numbers, step by step. Factorial, Permutation & Combination Calculator Work out n!, arrangements, combinations and anagram counts exactly, with every step shown in your browser. Fraction Calculator & Simplifier Reduce any fraction to lowest terms and add, subtract, multiply or divide two fractions — with the GCD and the LCM shown. Fraction ↔ Decimal Converter Turn a fraction into a decimal — repeating period included — and any decimal back into an exact fraction. Scientific Notation Converter Convert any number to scientific and engineering notation, and back again, with significant figures counted. Prime Number Checker & Factorizer Check whether a number is prime, break it into prime factors, list every prime up to N and find the next one. Pythagorean Theorem Calculator Find the hypotenuse or a missing leg of a right triangle, with every step of the calculation shown. Area & Perimeter Calculator Area and perimeter of squares, rectangles, triangles, circles, trapezoids and rhombuses, with the formula applied to your numbers. Multiplication Table Times table for any number from 1 to 100, a clickable 1-10 grid and a practice mode with a session score. Portuguese Syllable Separator Type a word in Portuguese and see its syllable separation — with classification as monosyllable, disyllable, trisyllable or polysyllable.