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  2. Mental calculation - Wikipedia

    en.wikipedia.org/wiki/Mental_calculation

    That initial answer’s tens digits (t (u 1 • u 2)) is added back to step 3’s initial answer. A+B+C are then added together to reach a sum (D). Step 4 is where the units digit to step 3’s initial answer to: (u 1 • u 2) is attached (symbolized by: @) to the end of the sum of steps 1-3. Step 4 = D @ u (u 1 • u 2) = E

  3. Mental calculator - Wikipedia

    en.wikipedia.org/wiki/Mental_calculator

    The Mental Calculation World Cup is considered the most challenging and respected international competition that attempts to find the world's best mental calculator, and also the best at specific types of mental calculation, such as addition, multiplication, square root or calendar reckoning. The Mental Calculation World Cup is arranged every ...

  4. Mental Calculation World Cup - Wikipedia

    en.wikipedia.org/wiki/Mental_Calculation_World_Cup

    The Mental Calculation World Cup 2010 was held at the University of Magdeburg, Germany [4] on 6–7 June 2010. It attracted 33 calculators from 13 countries. Adding ten 10-digit numbers, 10 tasks in 10 minutes Winner: Alberto Coto (Spain), 10 correct results in 3:42 minutes, world record; Multiplying two 8-digit numbers, 10 tasks in 15 minutes

  5. Zerah Colburn (mental calculator) - Wikipedia

    en.wikipedia.org/wiki/Zerah_Colburn_(mental...

    In September 1813 Colburn was being exhibited in Dublin. Colburn was pitted against the eight-year-old William Rowan Hamilton in a mental arithmetic contest, with Colburn emerging the clear victor. In reaction to his defeat, Hamilton dedicated less time to studying languages and more time to studying mathematics.

  6. Everyday Mathematics - Wikipedia

    en.wikipedia.org/wiki/Everyday_Mathematics

    Everyday Mathematics curriculum was developed by the University of Chicago School Math Project (or UCSMP ) [1] which was founded in 1983. Work on it started in the summer of 1985. The 1st edition was released in 1998 and the 2nd in 2002. A third edition was released in 2007 and a fourth in 2014-2015. [2]

  7. Mental abacus - Wikipedia

    en.wikipedia.org/wiki/Mental_abacus

    Mental calculation is said to improve mental capability, increases speed of response, memory power, and concentration power. Many veteran and prolific abacus users in China, Japan, South Korea, and others who use the abacus daily, naturally tend to not use the abacus any more, but perform calculations by visualizing the abacus.

  8. Connected Mathematics - Wikipedia

    en.wikipedia.org/wiki/Connected_Mathematics

    Connected Mathematics is a comprehensive mathematics program intended for U.S. students in grades 6–8.The curriculum design, text materials for students, and supporting resources for teachers were created and have been progressively refined by the Connected Mathematics Project (CMP) at Michigan State University with advice and contributions from many mathematics teachers, curriculum ...

  9. JumpStart Adventures 3rd Grade: Mystery Mountain - Wikipedia

    en.wikipedia.org/wiki/JumpStart_Adventures_3rd...

    JumpStart Adventures 3rd Grade: Mystery Mountain is a personal computer game in Knowledge Adventure's JumpStart series of educational software. As the title suggests, the game is intended to teach a third grade curriculum. This is the only version of this game created and, unusually for Knowledge Adventure, was still being sold over fifteen ...

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