(一) 写出1-12基数词
1.__________ 2. _______ 3. ________ 4.________ 5.________ 6. __________ 7. __________ 8. _______ 9.________ 10.________ 11._______ 12. _________ (二) 写出13-19基数词(-teen)
13.__________ 14.________15._________ 16.__________ 17. _________ 18.________ 19.__________
(三) 写出20-90基数词（-ty）
20.__________ 30.________ 40._________ 50.__________ 60._________ 70._______ 80. _________ 90. __________
(四) 100 _________________ 1000 ______________ ______________________
100，000_______________ 1,000,000 ________________________
100,000,000 一亿__________________ 1000,000,000 十亿__________________ 2000,000,000 二十亿_________________ 序数词：
1. 1st-_________ 2nd–__________ 3rd–__________ 2. 4th–_________ 5th-___________ 6th- __________ 3. 7th- __________ 8th–___________ 9th- ____________ 4. 10th–_________ 11th- __________ 12th– ____________ 5. 13th-__________ 14th-___________ 15th-___________ 6. 16th-___________ 17th-_____________ 18th-____________ 7. 19th-____________
8. 20th-__________ 30th-_________ 40th-__________ 50th-_________ 60th-________ 70th-_________ 80th-_________ 90th-___________ 9. 21st- 99th
前面基，后面序，连词符号在中间 21st- ____________ 32nd- _____________ 43rd- _____________ 54th- _____________ 65th- _____________ 76th- _______________ 87th- ______________ 68th- ____________ 99th- ____________
10. 百位以上序数词只变结尾就可以 11. 100th- _____________
12. 204th- _______________________________ 13. 562nd- _______________________________
10000
分数：子基母序分子大于一分母用复数 1/2 a half 1/4 a quarter 1/2 __________________________ 1/3 __________________________ 2/3 __________________________ 4/9 __________________________ 1/4 __________________________ 3/4 ___________________________ 小数：point
0.7 ____________________________ 6.18 ___________________________ 8.06 ___________________________ 3.14 ___________________________ 5.54 ___________________________
百分数：percent
10% ____________________________ 30% ____________________________ 90% _____________________________ 50% ____________________________ 28% _____________________________
扩展知识：
四则运算：加： and/plus 减：minus 乘：等于：equals/is
4+3=7Four plus three equals seven. 4-3=1Four minus three equals one.
4×3=12 Four times three equals twelve.
12÷3=4 Twelve divided by three equals four.
times 除：divided by
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