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 ...
These days, you are able to use a calculator. But how about people in ancient times? How did they beginning the electrical among them 1 using stones. Then, around the 2nd century BC, Chinese began to use the abacus(算盘).Now some researchers 3it to be the world's oldest calculator. ...
How would you solve Maths problems if you didn't have a calculator or a computer? For centuries,people in China have used an ancient counting tool to help solve such problems. The tool is called“abacus". In Chinese, it is known as “suanpan”.An abacus has a rectangular wooden frame....
76. able []"These days, you are...to use a calculator. " 及首字母可知,此处表示“能” ,beable to“能,会” ,是固定短 语。 故填 able 77. began []"Then, around the 2nd century B. C. Chi- nese...to use the abacuses."及首字母可知,此处指开始使 用,begin to“开始” ,是固定短...
The abacus is an ancient calculator. It is made of beads( 珠子)on rods(杆).You can use the abacus to do math, like adding, subtracting(减)乘), and dividing(除). It can also do harder math, like finding square roots(平方根).People still use the abacus today, especially(特别,尤其)...
根据第五段“Because abacuses used to be a must-have for business people.”可知,算盘曾经是商界人士的必备品。故them指代商人。故填business people。 (4)题详解: 根据第一段“How can you do calculations (计算) quickly? Nowadays, you can easily use a calculator.”可知,如何能快速计算?你可以使用...
Some researchers consider the invention to be the world's oldest “calculator". In China, people use abacuses to do calculations for thousands of years before electronics calculators became popular.The abacus is usually made of wood. It has many beads (珠子). Each bead above the horizontal(...
Another popular use of abaci around the world is to teach arithmetic to children, especially multiplication. The abacus can be a substitute for rote memorization of multiplication tables. In addition, people who can't use a calculator due to visual impairment may use an abacus. Blind children ar...
These days, you can easily use a calculator.But how about people in ancient times? In the very beginning, the cleverest among them thought of using stones and seashells. Then,around the 2nd century B. C., they invented the abacus. Some researchers consider the invention to be the world's...
D1 Compare an abacus with an electronic calculator. Discuss their differences in how they look and how they are used. Use the words in the box to help you.(比较算盘与电子计算器外形与功能的区别。)electronicdisplay screenkeyboardplasticbatterylightheavymetalbuttonbambooD2 According to your observatio...