1、本网站免费注册后即可以下载，点击开通VIP会员可无限免费下载！
2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。
3、有任何下载问题，请联系微信客服。
扫描下方二维码，添加微信客服
三年级上册《UNIT 3 LET’S DO MATH! Lesson 17》优秀ppt课件
forty
80 yuan
eighty
90 yuan
ninety
100-30 =70
One hundred minus thirty is seventy.
A: How much are the shoes?
B: One hundred yuan.
A: That’s too expensive.
B: Ok, 30 yuan cheaper. 70 yuan.
A: Thank you.
Let’s fill in the blanks!
20 _________ 40 50 ___________-
seventy _________ ________ one hundred
Read and match!
ninety – fourty =
eighty – twenty =
twenty + fifty =
seventy– three =
thirty – twenty =
sixty + forty =
sixty
seventy
fifty