The wonderful secrets of mathematics


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ERGASHEVA KH.M 040170004919


UDK: 518.12
"The wonderful secrets of mathematics"
Compiled by: Ergasheva Khilola Muydinjonovna teacher of the KSPI MO department (+998 90 567 69 28)
Arslanova Nodira Ikramjon qizi - 3rd year student of the KSPI
(+998 93 978 23 99)


Abstact: This article describes how to solve more tasks and examples in a convenient way in a short period of time.
Аннотация: В данной статье описывается решения больше задач и примеров удобным способом за короткий промежуток времени.
Annotatsiya: Ushbu maqolada kam vaqt oralig`ida ko`proq misol va masalalarni yechishni qulay hisoblash usullari yoritilgan.


Keywords: Four-digit, three-digit, two-digit numbers; rounding, number, divisor, last number, arithmetic operations: addition, subtraction, multiplication.
Ключевые слова: четырёхзначные, трёхзначные, двухзначные, округление, числа, вычитаемое, последняя цифра, арифметические методы: прибавление, вычитание, умножение
Kalit so’zlar: To’rt xonali, uch xonali, ikki xonali sonlar; yaxlitlash, raqam, ayiruvchi, oxirgi raqam, arifmetik amallar: qo’shish, ayirish, ko’paytirish.


Introduction
We do some computational work in mathematics, solving examples and problems. But even if we use convenient methods, we can. In doing so, we save time, as long as we can solve more examples or problems at shorter intervals. We want to show you convenient methods of calculation for the purpose of convenience when solving examples. The use of these methods attracts students with low levels of learning or those who are not interested in mathematics, and attracts them to themselves.

  1. Rule for separating from optional 4-digit numbers to a 3-digit number.

For instance:1238-479=
When solving such examples, you need to round the separator. That is, the number 479 is to the right of 500. To say,
1238-500=738 will be the same situation. Now let's find the crusher by how much less than the last 2 digits of 100. Add the resulting number to 738. That is 479 last 2 numbers 79. And this is from 100 to 21 less. Now add 21 to the 738.
738 + 21=759.
Answer: 759


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