the abacus was quite popular with Greek, Roman, Egyptian and Oriental cultures of the past, and is still used in the modern world by some people to conduct day-to-day business. Using the Chinese abacus is not very difficult, once you understand how this ...
People useto countthings.2.我们可以通过这种方式学习如何使用算盘。We can learn how to use abacus3.他们不知道食物的数量和动物的数量。They don't knowfood andanimals.4.人们把标记串在细绳上,目的是四处携带方便。People put the tokens on the stringthey couldeasily.5.这发展成为像算盘一样的工具。This...
A good abacus is a pleasure to touch. It should have wooden rods with rows of smooth wooden beads of different colours. Depending on size, there could be five or ten rows, with a ten-row abacus often using the colours of the five-row twice.Chris Heald...
百度试题 结果1 题目5 My grandpa taught me how to useabacuseswhen I was young.(abacus) 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
This book will teach you step-by-step how to perform addition, subtraction, division, multiplication, square roots and cube roots on a Chinese abacus. It also explains the ancient 'extra bead' method and the 'suspended bead' method. Great for both children and adults. Clearly explained with ...
First appearing around 1200 A.D. in China, the modern abacus evolved from the counting boards that dated back to Babylonian civilization. Featuring rods of vertical beads split across two decks, the abacus serves as a tool that still finds use in many As
introduce the abacus to people B. teach people how to use the abacus C. try to make the abacus popular again D. explain why the abacus is no longer popular 相关知识点: 试题来源: 解析 答案见上31.C 解析:根据第二段中“Then,around the 2nd century BC, they invented the abacus. Some...
Use theFill Handleto apply the formula to other cells. Filter Bold Entries RepeatSteps 5and 6fromMethod 2: Apply afilterto the header (Find Bold Text). UnselectBlanksfrom the filter options and clickOK. Excel will hide non-bold entries within the range, displaying only the bold ones. ...
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How Long Does It Take to Learn to Use an Abacus? You can master basic calculations, such as addition, multiplication, subtraction, and division, within two or three months. For more complex operations, like powers and cube roots, it may take up to two years to learn to perform the calcul...