Abacus Lesson - ADD and SUB -

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4,9
4,68 ming ta sharh
100 ming+
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Yoshga oid cheklov
Hamma uchun
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Bu ilova haqida

An abacus is named "Soroban" in Japan. Do you know what an abacus is? The abacus is very simple calculator used in China, Japan, Korea and so on. Some people may say "Isn't it an unnecessary tool if you have a calculator such as a smartphone?". Answer would be "No".

The biggest difference between electric calculators and the abacus is whether you need to hold it in your hand when calculating. Because of its simplicity, you will be able to easily use the abacus in your mind.

Imagine that you can use calculations of about 3 digits in your life without physical tools.

This app will give you the skill of calculation.

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Oxirgi yangilanish
31-iyl, 2024

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Joylashuv, Internetni kezish va yana 2 ta
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Reytinglar va sharhlar

4,9
4,32 ming ta sharh
Izzatbek Xolboyev
26-yanvar, 2024
you have wrongly explained the rule of adding the 3rd lesson in the summary part. but the program is very well designed
Buni foydasi tegdimi?
Feruza Sohibova
16-may, 2024
yaxshi
Buni foydasi tegdimi?
Ggg Hhh
18-aprel, 2023
Juda zo'r
1 kishi bu sharhni foydali deb topgan
Buni foydasi tegdimi?

Nima yangiliklar

Updated library

Ilova yuzasidan yordam

Dasturchi haqida
小松弘和
hirokuma.app@gmail.com
戸塚区矢部町860−64 横浜市, 神奈川県 244-0002 Japan
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