Absolute Difference

Absolute Value

Accuracy and Precision

Addition and Multiplication Multiples

Addition and Multiplication Tables (Times Tables)

Addition Equality Property

Addition of 3 or more numbers

Addition Property Of Inequality

Additive Identity Property

Additive Inverse Property

Associative Property

Balancing Equations

Basic Math Operations

Benchmark Fractions

Ceiling

Commutative Property

Comparison of Numbers

Counting

Counting by Tens

Counting on a Number Line

Counting with Groups of 10 and Leftovers

Decompose Number Pairs

Distributive Property

Division Equality Property Calculator

Division Property Of Inequality

Duplication and Mediation

Estimate Decimals

Estimate Fraction

Estimate Sums

Estimating Reasonableness of Products

Even Numbers

Fibonacci Sequence

Floor

Fraction Cancellation Property

Greatest Common Factor and Least Common Multiple

Int Function

Lattice Multiplication

Lucas Numbers

Multiple Fractions (Addition or Ordering)

Multiplication Array

Multiplication Comparison

Multiplication Equality Property

Multiplication Property Of Inequality

Multiplicative Comparison

Multiplicative Identity Property

Multiplicative Inverse Property

Natural Numbers

Number Bonds

Number Line

Number Line Midpoint

Odd Numbers

Opposite Numbers

Ordering Numbers

Ordinal Number

Partial Quotient

Partial Sum

Percent Math

Predecessor

Prime Numbers

Rational Number Subtraction

Reflexive Property

Regrouping

Rounding

Rounding to Decimal Places

Sales Tax

Shading Decimals

Subtraction Equality Property

Subtraction Property Of Inequality

Successor

Symmetric Property

Tally Marks

Ten Frame

Transitive Property of Equality

Trichotomy Property

True False Equations

Truncate

Unknown Number

Vinculum

Whole Numbers

Zero Multiplication Property

Calculates the absolute difference between 2 numbers

Calculator · Watch the VideoAbsolute Value

Add, subtract, multiply or divide any two numbers with absolute value signs. Positive Difference.

Calculator · Watch the VideoAccuracy and Precision

Given an integer or decimal, this determines the precision and accuracy (scale)

Calculator · Watch the VideoAddition and Multiplication Multiples

Shows all addition and multiplication multiples up to 20 for a positive integer

CalculatorAddition and Multiplication Tables (Times Tables)

Shows the color coded addition or multiplication table entries and answer for any 2 numbers 1-15.

Calculator · Watch the VideoAddition Equality Property

Demonstrates the Addition Equality Property
Numerical Properties

CalculatorAddition of 3 or more numbers

This calculator performs addition with carrying and an addition grid for 3 or more numbers.

Calculator · Watch the VideoAddition Property Of Inequality

Demonstrates the Addition Property Of Inequality.
Numerical Properties

CalculatorAdditive Identity Property

Displays the line by line proof for the additive identity property
Numerical Properties

Calculator · Watch the VideoAdditive Inverse Property

Demonstrates the Additive Inverse property using a number. A + (-A) = 0
Numerical Properties

Calculator · Watch the VideoAssociative Property

Demonstrates the associative property using 3 numbers. Covers the Associative Property of Addition and Associative Property of Multiplication. Also known as the Associative Law of Addition and Associative Law of Multiplication
Numerical Properties

CalculatorBalancing Equations

Given 4 numbers, this will use the four operations: addition, subtraction, multiplication, or division to balance the equations if possible.

CalculatorBasic Math Operations

Given 2 numbers, this performs the following arithmetic operations:

* Addition (Adding) (+)

* Subtraction (Subtracting) (-)

* Multiplication (Multiplying) (x)

* Long division (Dividing) with a remainder (÷)

* Long division to decimal places (÷)

* Partial Sums (Shortcut Sums)

* Short Division

* Duplication and Mediation

Calculator · Watch the Video* Addition (Adding) (+)

* Subtraction (Subtracting) (-)

* Multiplication (Multiplying) (x)

* Long division (Dividing) with a remainder (÷)

* Long division to decimal places (÷)

* Partial Sums (Shortcut Sums)

* Short Division

* Duplication and Mediation

Benchmark Fractions

Adds or Subtracts or Compares 2 fractions using estimating sums or estimating differences with benchmark fractions.

CalculatorCeiling

Calculates the ceiling of a number

Calculator · Watch the VideoCommutative Property

Demonstrates the commutative property of addition and the commutative property of multiplication using 3 numbers.
Numerical Properties

CalculatorComparison of Numbers

Compares two numbers and checks to see if they are equal to one another, if the first number is greater than the second number, or the first number is less than the second number. Minimum and maximum.

Calculator · Watch the VideoCounting

Counts up from a number to another number using a factor

Counts down from one number to another number using a factor. Also known as skip counting.

CalculatorCounts down from one number to another number using a factor. Also known as skip counting.

Counting by Tens

Counts by Tens

CalculatorCounting on a Number Line

Shows addition or subtraction by moving left or right on a number line.

CalculatorCounting with Groups of 10 and Leftovers

This calculator finds the total using groups of tens and leftover values.

CalculatorDecompose Number Pairs

Decomposes a number into number pairs of sums.

CalculatorDistributive Property

Demonstrates the distributive property using 3 numbers.
Numerical Properties

CalculatorDivision Equality Property Calculator

Demonstrates the Division Equality Property Calculator
Numerical Properties

CalculatorDivision Property Of Inequality

Demonstrates the Division Property Of Inequality
Numerical Properties

CalculatorDuplication and Mediation

Multiplies two numbers using Duplication and Mediation

CalculatorEstimate Decimals

This calculator estimates a decimal.

CalculatorEstimate Fraction

Estimates a fraction using a benchmark fractions of 1/2.

CalculatorEstimate Sums

Estimates the sum of 2 numbers.

CalculatorEstimating Reasonableness of Products

Given a product of 2 numbers and an estimated product, this will check to see if it is reasonable

CalculatorEven Numbers

Shows a set amount of even numbers and cumulative sum

Calculator · Watch the VideoFibonacci Sequence

Generates a list of the first 100 Fibonacci numbers.
Also shows how to generate the nth Fibonacci number using Binet's Formula

Calculator · Watch the VideoFloor

Determines the floor of a number

Calculator · Watch the VideoFraction Cancellation Property

Demonstrates the Fraction Cancellation Property also known as Cancellation Property of Fractions
Numerical Properties

CalculatorGreatest Common Factor and Least Common Multiple

Given 2 or 3 numbers, the calculator determines the following:

* Greatest Common Factor (GCF) using Factor Pairs

* Rewrite Sum using the Distributive Property and factoring out the GCF

* Least Common Multiple (LCM) / Least Common Denominator (LCD) using Factor Pairs

* GCF using the method of Successive Division

* GCF using the Prime Factorization method

* Determine if the numbers are coprime and twin prime

Calculator · Watch the Video* Greatest Common Factor (GCF) using Factor Pairs

* Rewrite Sum using the Distributive Property and factoring out the GCF

* Least Common Multiple (LCM) / Least Common Denominator (LCD) using Factor Pairs

* GCF using the method of Successive Division

* GCF using the Prime Factorization method

* Determine if the numbers are coprime and twin prime

Int Function

Determines the integer of a number

CalculatorLattice Multiplication

Performs Lattice Multiplication or the Napiers Bones (Napier Rods) method of multiplication

CalculatorLucas Numbers

Generates a list of the first 100 Lucas numbers.

CalculatorMultiple Fractions (Addition or Ordering)

This adds 3 or more fractions or arranges a list of fractions from lowest to highest and highest to lowest (ordering fractions or sorting fractions)

Calculator · Watch the VideoMultiplication Array

This allows you to enter pictorials using * symbols to represent multiplication

CalculatorMultiplication Comparison

Evaluates a multiplication comparison

CalculatorMultiplication Equality Property

Demonstrates the Multiplication Equality Property
Numerical Properties

CalculatorMultiplication Property Of Inequality

Demonstrates the Multiplication Property Of Inequality
Numerical Properties

CalculatorMultiplicative Comparison

Performs a multiplicative comparison word problem.

CalculatorMultiplicative Identity Property

Demonstrates the Multiplicative Identity property using a number.
Numerical Properties

CalculatorMultiplicative Inverse Property

Demonstrates the Multiplicative Inverse property using a number.
Numerical Properties

CalculatorNatural Numbers

Shows a set amount of natural numbers and cumulative sum

CalculatorNumber Bonds

Adds or subtracts 2 numbers and using grouping by 10 or 100. Also called number bonds or addition facts. Multiplies two numbers using tape diagrams.

CalculatorNumber Line

Counts from a point going left and right on a number line

CalculatorNumber Line Midpoint

Calculates a midpoint between 2 points on a number line or finds the second endpoint if one endpoint and midpoint are given.

Calculator · Watch the VideoOdd Numbers

Shows a set amount of odd numbers and cumulative sum

CalculatorOpposite Numbers

Given a positive or negative integer (n), this calculates the opposite number of n

Calculator · Watch the VideoOrdering Numbers

Given a list of numbers, this will order the list ascending (lowest to highest or least to greatest) or descending (highest to lowest or greatest to least)

Calculator · Watch the VideoOrdinal Number

This calculator determines the ordinal number of an integer

Calculator · Watch the VideoPartial Quotient

Divides 2 numbers using the Partial Quotient

CalculatorPartial Sum

Calculates a partial sum for 2 numbers.

CalculatorPercent Math

Simplifies expressions involving numbers and percents with respect to addition and subtraction

Calculator · Watch the VideoPredecessor

Calculates the predecessor number to a given number

Calculator · Watch the VideoPrime Numbers

Shows up to 3000 prime numbers and a cumulative sum

Calculator · Watch the VideoRational Number Subtraction

Subtracting 2 numbers, this shows an equivalent operations is adding the additive inverse. p - q = p + (-q)

CalculatorReflexive Property

Demonstrates the reflexive property of congruence using a number.
Numerical Properties

Calculator · Watch the VideoRegrouping

Subtracts two numbers using regrouping

CalculatorRounding

Rounds a number to the nearest number of your choice

Calculator · Watch the VideoRounding to Decimal Places

Rounds a number to a select number of decimal places

Calculator · Watch the VideoSales Tax

Given a sales price and a total bill, this calculates the sales tax amount and sales tax percentage

Calculator · Watch the VideoShading Decimals

This calculator shades a grid for a decimal.

CalculatorSubtraction Equality Property

Demonstrates the Subtraction Equality Property
Numerical Properties

CalculatorSubtraction Property Of Inequality

Demonstrates the Subtraction Property Of Inequality
Numerical Properties

CalculatorSuccessor

Calculates the successor number to a given number

Calculator · Watch the VideoSymmetric Property

Demonstrates the Symmetric property using a number.
Numerical Properties

CalculatorTally Marks

Shows the tally mark representation (tallies) for a positive integer.

Calculator · Watch the VideoTen Frame

Builds a ten frame (dot card) for a number and shows numbers more and less.

Calculator · Watch the VideoTransitive Property of Equality

Demonstrates the Transitive property of equality using a number.
Numerical Properties

CalculatorTrichotomy Property

Demonstrates the Trichotomy Property with 2 numbers.
Numerical Properties

CalculatorTrue False Equations

Determines if a set of addition and subtraction of numbers on each side of an equation are equivalent.
Also known as true or false equations

Calculator · Watch the VideoTruncate

Truncates a number to a specified number of decimal places. Truncates decimals.

Calculator · Watch the VideoUnknown Number

Determines the unknown number needed to make an equation true.

CalculatorVinculum

Shows you the various examples and definition of a vinculum

Lesson · Watch the VideoWhole Numbers

Shows a set amount of whole numbers and cumulative sum

CalculatorZero Multiplication Property

Demonstrates the Zero Multiplication property using a number. Also called the Zero Product Property.
Numerical Properties

Calculator