三年级上册英语课件-UNIT 3 LET'S DO MATH LESSON 16 课件｜清华版（一起） (共15张PPT)

UNIT 3 LET’S DO MATH LESSON 16 13~19皆以后缀-teen结尾 13 thirteen 14 fourteen 15 fifteen 16 sixteen 17 seventeen 18 eighteen 19 nineteen Look and learn 13 14 15 16 Again thirteen fifteen fourteen sixteen 18 17 19 20 seventeen eighteen nineteen twenty Let’s do it ¥15 ¥2 I want do buy a book and two pencils. The book is 15 Yuan. The pencils are 4 Yuan. How much money do I need? 15+4=19 Fifteen plus four is nineteen. You need nineteen Yuan. I want do buy a pen and three erasers. The pen is 14 Yuan. The erasers are 3 Yuan. How much money do I need? ¥1 ¥14 14+3=17 Fourteen plus three is seventeen. You need seventeen Yuan. I want do buy a pencil case and one ruler. The book is 13 Yuan. The ruler is 3 Yuan. How much money do I need? ¥3 ¥13 13+3=16 Thirteen plus three is sixteen. You need sixteen Yuan. I want do buy a pencil case and two pencils. The book is 13 Yuan. The pencils are 4 Yuan. How much money do I