Calculation problem in mental calculation World Cup [World tournament of mental calculation]

You can see what kind of problem is set in the mental calculation world cup.
You can learn the conditions and how to participate in the mental calculation world cup.
If you are confident, please challenge.
 

I'm the author of this article and I'm a qualified abacus teacher, answering questions from around the world online abacus and various questions from online-soroban.com students.

Table of contents
1. What is the mental calculation world cup?
2. Problems at the mental calculation world cup

1. What is the mental calculation world cup?

Once every two years in Germany, people from the world who have good mental arithmetic and calculations gather in one place.
Compete for victory by tackling various calculation problems.
This year's tournament will take place August 21-23 in Paderborn, Germany.

1-1.What kind of tournament?

People from all over the world who are confident and proven in calculations
Calculate various calculation problems only in your head and derive answers
It is the world's highest battle of mental arithmetic.

1-2.Who can participate?

There is no specific age limit, such as the winner of a calculation tournament in each country.
The tournament will be held with a maximum of 40 people selected.

1-3. What are the eligibility requirements?

In order to get qualified, the participant will have to register by sending the signed entry form until 1 May 2020.

Registrations by e-mail will be accepted only from calculators who already took part in the Mental Calculation World Cup in one of the previous years.

For registrations arriving after 1 May 2020, there is no guarantee that they will be considered in the qualification.

They can, however, be discussed on an individual basis.

The number of participants is restricted to 40.

If a qualification is necessary, the organizer will make sure that: a) the mental calculators with the best achievements will be invited and b) calculators from a large number of countries will be invited In the registration form, any previous achievements on mental contests (mental calculation, memory, mental puzzles, mental games) should be documented.

In addition, the scores achieved with the Memoriad computer program (http://memoriad.com/memoriadsoftware.asp) in the mental calculation categories should be documented (category, number of correct answers, time).

These results must be confirmed by a witness with some background in mental calculation (for example a maths teacher).

This information will be used for making the decision about the calculators who qualify for the MCWC.
 

1-4.any entry fee?

The participation fee is free.
But You need to prepare your own transportation expenses.

1-5.What are the rules?

Solving calculations only in your head.
It is forbidden to write intermediate expressions.

2. Problems at the mental calculation world cup

Let's take a look at what kind of problem is presented at the mental calculation world cup
Can you solve this problem in your head?

2-1.10 digits addition 10times

Calculate 10-digits addition 10 times and write the answer.
Time limit 7 minutes

2-2.Multiplication of 8 digits x 8 digits

It is a multiplication of 8 digits x 8 digits.
they write answers at the great speed calculate only in their head.
Time limit 10 minutes

2-3.square root question, seek to answer up to 8 digits

Square root questions are also calculated in my head.
Since the answer is written in 8 digits, it can be calculated quickly to the decimal point by mental arithmetic.
Time limit 10 minutes

2-4.A calendar day of the week

The day of the week for the calendar.
From 1600 to 2100, the day of the week is determined instantly.
Time limit 1 minute

2-5.Surprise issues

This is a surprise issue and will not be announced until the day.
A single task is given. The issue is not known to the competitor before the event.
Time limit 10 minutes

2-6.ISHIDO-SHIKI which the champion learns

ISHIDO-SHIKI's curriculum includes mental training, an image training that calculates in the mind.
It contains a lot, and since childhood, ISHIDO-SHIKI has trained creativity, concentration, judgment, patience, memory, and information processing.
As a result, different players have participated in the Mental Calculation World Cup every time, but all have achieved good results.

Overall  
A mental calculation World Cup that solves such a problem only in your head and leads to the answer
Both ISHIDO-SHIKI teachers and students are World Cup champions.
Want to learn the curriculum that the world champion has also learned online?
Do you want to know more ISHIDO-SHIKI result 

Mental Calculation World Cup
The Mental Calculation World Cup is the world's best calculation tournament held every two years in Germany.From ISHIDO-SHIKI students also got world champions