英文翻译、急？

ancie numbers
in an cient times,people wrote numbers in many different ways.however,they nearly all counted in tens.
zero
the system of numbers today consists of the numbers from 1 to 9 and 0(zero).the indians first invented and developed the 1 to 9 system of numbers.they then invented the zero.the invention of the zero helped people write big numbers and calculate more easily.now use each of these ten numbers once to write the biggest number.what is it?
calculating machines
one of the first calculating machineswas an abacus.abacusesare fast and accurate.onthe abacus,the beads on the wire.the abacus in the picture shows a number.write it down in words.multiply it by zero and then add 1.what is the answer?
modern electronic calculators can add,subtract,multiply and divide.it can also calculate percentages and square roots.
computers are very powerful calculating machines.a computer can do a calculation in a flash.

古代有古代的计数方法，人们用不同的方法计数，零是后来才发明的，所以有了1-9当然也包括0在内的数字，印度人首先发明的，0的发明使计算更大和更容易。也有用在绳子上打结的计算方法。现在用机器计算，加减乘处平方立方百分比这些都有了，计算更先进。