Tham khảo tài liệu 'english grammar for esl learners phần 9', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Unit 24 Numbers Numbers are generally used for specifying amounts and in mathematics addition subtraction multiplication and division. You have undoubtedly encountered them in many forms. Let s first review cardinal numbers. 0 zero 21 twenty-one 1 one 22 twenty-two 2 two 30 thirty 3 three 40 forty 4 four 50 fifty 5 five 60 sixty 6 six 70 seventy 7 seven 80 eighty 8 eight 90 ninety 9 nine 100 one hundred 10 ten 101 one hundred one 11 eleven 102 one hundred two 12 twelve 200 two hundred 13 thirteen 500 five hundred 14 fourteen 1 000 one thousand 15 fifteen 2 000 two thousand 16 sixteen 10 000 ten thousand 17 seventeen 11 000 eleven thousand 18 eighteen 20 000 twenty thousand 19 nineteen 100 000 one hundred thousand 20 twenty 111 111 one hundred eleven thousand one hundred eleven Copyright 2005 by The McGraw-Hill Companies Inc. Click here for terms of use. 120 Numbers 121 Careful English names for certain large numbers differ from those in other languages English Number million 1 000 000 billion 1 000 000 000 trillion 1 000 000 000 000 When numbers are used in equations there are specific mathematical terms to be used. In addition numbers are combined by either the word plus or the word and five plus three ten and nine. In subtraction the equation requires using the word minus ten minus four. In multiplication the equation requires using the word times X six times three. In division the equation requires the phrase divided by or twenty divided by five. If an equation has an equal sign in it it is stated as equals or is two plus two equals four six minus three is three. If a number is a decimal the decimal is expressed by the word point. is said as six point five is said as ten point seven. The ordinal numbers are those that show a rank in a group or series. Most ordinals are formed by adding -th to the end of the number tenth twentieth sixty-seventh hundredth and so on. But five ordinal numbers have special spellings which should be memorized 1 first 2 second
