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  1. Desmos | Scientific Calculator

    A beautiful, free online scientific calculator with advanced features for evaluating percentages, fractions, exponential functions, logarithms, trigonometry, statistics, and more.

  2. Simple Calculator - free basic calculator online

    Use our free simple calculator for basic math operations. This free basic calculator online handles addition, subtraction, multiplication and division. Fast, easy to use, works on any device.

  3. calculator.com®

    Explore free online calculators for solving problems, satisfying curiosity, or just for fun at calculator.com.

  4. Web 2.0 scientific calculator

    Free Online Scientific Notation Calculator. Solve advanced problems in Physics, Mathematics and Engineering. Math Expression Renderer, Plots, Unit Converter, Equation Solver, Complex Numbers, …

  5. Google Calendar - Easier Time Management, Appointments ...

    Learn how Google Calendar helps you stay on top of your plans - at home, at work and everywhere in between.

  6. The Calculator Site - Free Online Calculators

    Popular calculators for finance, construction, health, cooking, education and more. Over 8 million calculations performed monthly. All free to use.

  7. California State Portal | CA.gov

    CA.gov is the official website for the State of California. You can find and access California services, resources, and more.