三年级到五年级的基数词和序数词是指表示数量和顺序的词语。基数词是用来表示数量的词，如一、二、三等。序数词是用来表示顺序的词，如第一、第二、第三等。在三年级到五年级的学习中，学生会学习更多的基数词和序数词，以便能够正确地表达数量和顺序
以下是1~6年级英语基数词和序数词的列表：
一年级：
基数词：1 one, 2 two, 3 three, 4 four, 5 five, 6 six, 7 seven, 8 eight, 9 nine, 10 ten
序数词：1st first, 2nd second, 3rd third, 4th fourth, 5th fifth, 6th sixth, 7th seventh, 8th eighth, 9th ninth, 10th tenth
二年级：
基数词：11 eleven, 12 twelve, 13 thirteen, 14 fourteen, 15 fifteen, 16 sixteen, 17 seventeen, 18 eighteen, 19 nineteen, 20 twenty
序数词：11th eleventh, 12th twelfth, 13th thirteenth, 14th fourteenth, 15th fifteenth, 16th sixteenth, 17th seventeenth, 18th eighteenth, 19th nineteenth, 20th twentieth
三年级：
基数词：21 twenty-one, 22 twenty-two, 23 twenty-three, 24 twenty-four, 25 twenty-five, 26 twenty-six, 27 twenty-seven, 28 twenty-eight, 29 twenty-nine, 30 thirty
序数词：21st twenty-first, 22nd twenty-second, 23rd twenty-third, 24th twenty-fourth, 25th twenty-fifth, 26th twenty-sixth, 27th twenty-seventh, 28th twenty-eighth, 29th twenty-ninth, 30th thirtieth
四年级：
基数词：40 forty, 50 fifty, 60 sixty, 70 seventy, 80 eighty, 90 ninety, 100 one hundred
序数词：40th fortieth, 50th fiftieth, 60th sixtieth, 70th seventieth, 80th eightieth, 90th ninetieth, 100th one hundredth
五年级：
基数词：1,000 one thousand, 1,000,000 one million
序数词：1,000th one thousandth, 1,000,000th one millionth
六年级：
基数词：1 billion, 1 trillion
序数词：1 billionth, 1 trillionth
