Pre-Algebra Calculators: (49) lessons

Free Algebraic Expressions Calculator - This calculator builds algebraic expressions based on word representations of numbers using the four operators and the words that represent them(increased,product,decreased,divided,times) Also known as Mathematical phrases

Free Approximate Square Root Using Exponential Identity Calculator - Calculates the square root of a positive integer using the Exponential Identity Method

Free Babylonian Method Calculator - Determines the square root of a number using the Babylonian Method.

Free Bakshali Method Calculator - Calculates the square root of a positive integer using the Bakshali Method

Free Better Buy Comparison Calculator - Given two items with a price and quantity, this determines which is the better buy by comparing unit prices. Finds the better deal.

Free Classify Fraction Calculator - Determines the if a fraction is proper, improper, or whole.

Free Closest Fraction Calculator - Determines the closest fraction in a list to a target fraction

Free Combined Ratio Calculator - Given a ratio a:b and a ratio b:c, this determines the combined ratio a:c

Free Continued Fraction Calculator - Shows the continued fraction for a fraction

Free Decompose Fraction Calculator - Decomposes a Fraction. Shows you the work behind decomposing a fraction

Free Digit Product Calculator - Calculates a digit product for a number.

Free Digit Sum Calculator - Calculates a digit sum and reduced digit sum for a number.

Free Equivalent Fractions Calculator - Given a fraction, this will determine equivalent fractions

Free Estimate Square Roots Calculator - Estimates the square root of a number

Free Expanded Notation Calculator - Writes the expanded notation for a number.

Free Factorization Calculator - Given a positive integer, this calculates the following for that number:
1) Factor pairs and prime factorization and prime power decomposition
2) Factors and Proper Factors 3) Aliquot Sum

Free Fractions Calculator - Calculates things like fraction to percent, fraction to decimal, unit fraction, ratios, and more

Free Fractions and Mixed Numbers Calculator - Given (improper fractions, proper fraction, mixed numbers, or whole numbers), this performs the following operations:
* Addition (Adding)
* Subtraction (Subtracting)
* Positive Difference (Absolute Value of the Difference)
* Multiplication (Multiplying)
* Division (Dividing: complex fraction division is included)
* Compare Fractions
* Simplifying of proper and improper fractions as well as mixed numbers. Fractions will be reduced down as far as possible (Reducing Fractions).
* Reciprocal of a Fraction
* Find all fractions between two fractions
* reduce a fraction

Horizontal Vertical Line Calculator - Calculates things horizontal and vertical lines and the various properties

Free Index Form Calculator - Writes a number using index form notation

Free Integers Calculator - This lesson walks you through what integers are, how to write integers, integer notation, and what's included in integers

Free Interval Counting Calculator - Evaluates a set of interval counting statements in the form a(b)c.

Free Newton Method Calculator - Calculates the square root of a positive integer using the Newton Method

Free Opposite Direction Distance Calculator - Word Problem calculator to measure distance between 2 people moving in opposite directions with rate and time solved for as well

Free Order of Operations Calculator - Evaluates an expression using the order of operations, or PEMDAS or PEDMAS or BEDMAS or BODMAS

Free Percentage Change Calculator - Calculates the percentage change between two values. Percentage Increase or Percentage Decrease

Free Percentage-Decimal-Fraction Relations Calculator - Calculates the relational items between a fraction, a decimal (including repeating decimal and terminating decimal), a percentage, and the numerator and denominator piece of that fraction. Also calculates the percentage change going from one number to another or the amount increase or decrease of a percentage above/below a number. Round decimals. decimals into fractions

Free Place Value Calculator - Given a whole number or a decimal, the calculator will perform place number analysis on each place in your number.
For the whole and decimal portion, the calculator goes out to the 100 trillion mark.

Free Polynomial Calculator - This calculator will take an expression without division signs and combine like terms.
It will also analyze an polynomial that you enter to identify constant, variables, and exponents. It determines the degree as well.

Free Powers Of Calculator - Determines the powers of a number from 1 to n.

Free Projectile Motion Calculator - Solves for time using a height and velocity of an object thrown up in the air

Free Proportion Calculator - 1) Calculates the missing link of 2 equivalent proportions or ratios.
2) Also determines if two numerical proportions that you entered such as 1/10=6/12 are equivalent or not equivalent. Note: You can use all allowable operators such as =,<,≤,>,≥

Free Radical Expressions Calculator - Evaluates and simplifies radical expressions. Simplifying radical expressions.

Free Rational Numbers Calculator - This lesson walks you through what rational numbers are, how to write rational numbers, rational number notation, and what's included in rational numbers

Free Ratios Calculator - * Simplifies a ratio of a:b
* Given a ratio in the form a:b or a to b, and a total population amount, this calculator will determine the expected value of A and B from the ratio.

Free Real Numbers Calculator - This lesson walks you through what real numbers are, how to write real numbers, real numbers notation, and what's included in real numbers

Free Repeating Decimal Calculator - Evaluates and simplifies a repeating decimal

Free Roster Notation Calculator - Given a set of numbers, this displays the roster notation

Free Signed Integer Operations Calculator - This performs a string of signed integer operations, either all addition and subtraction, or all multiplication and division.

Free Simplest Exponent Form Calculator - This expresses repeating algebraic expressions such as 3*a*a*a*b*b into simplest exponent form.

Free Square Root Table Calculator - Generates a square root table for the first (n) numbers rounded to (r) digits

Free Square Roots and Exponents Calculator - Given a number (n), or a fraction (n/m), and/or an exponent (x), or product of up to 5 radicals, this determines the following:
* The square root of n denoted as √n
* The square root of the fraction n/m denoted as √n/m
* n raised to the xth power denoted as nx (Write without exponents)
* n raised to the xth power raised to the yth power denoted as (nx)y (Write without exponents)
* Product of up to 5 square roots: √abcde
* Write a numeric expression such as 8x8x8x8x8 in exponential form

Free Standard Notation Calculator - Calculates the following:
* The numeric notation of word notation
* Standard notation of expanded notation

Free Standard Notation Calculator - Displays the Standard notation of expanded notation

Free Unit Cost Calculator - Calculates the unit cost based on a price and a quantity

Free Unit Fraction Calculator - Determines the unit fraction for a fraction.

Free What is a Fraction Calculator - This lesson walks you through what a fraction is and the different parts of a fraction.

Free What is an Exponent Calculator - This lesson walks you through what an exponent is, the product rule for exponents, the quotient rule for exponents, the 0 power rule, the power of a power rule for exponents

Free Word Notation Calculator - Calculates the following:
* The word notation of a number of numeric expression