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Fraction to Decimal**

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nCr**

nPr**

Adding Machine / Tape**

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Time Card**

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Auto Loan: Simple

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Mortgage: Simple

Multiplication Tables Game

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Factor

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Math

Mixed Numbers / Fractions**

Percentages **

Prime Factorization

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Scientific Notation

Simplify Fractions

v_a = ( v + v₀ ) / 2 :
Average velocity

v = v₀ + at :
Velocity as a function of initial velocity, acceleration and time

x = ½( v + v₀ )t :
Displacement as a function of velocity and time

x = v₀t + ½at² :
Displacement as a function of initial velocity, acceleration and time

Sunrise Sunset Times (beta)

Time Units Converter

Time to Decimal Converter**

Time Card Calculator

Math Word Problem: Addition & Multiplication

Math Word Problem: Division

Algebra Word Problem 1

Algebra Word Problem 2