• 14、Thank you very much for taking me with you on that splendid outing to London. It was the first time that I had seen the Tower or any of the other famous sights. If I'd gone alone, I couldn't have seen nearly as much, because I wouldn't have known my way about.
。2020年12月18日星期五2020/12/182020/12/182020/。2020年12月2020/12/182020/12/182020/12/1812/18/2020
• 16、如果一个人不知道他要驶向哪头,那么任何风都不是顺风。2020/12/182020/12/18December 18, 2020
加减混合
复习引入
1. 9- 3- 4= 2 2. 4+3+2= 9
3. 2+4+0= 6
8- 2- 3= 3 5+4+1= 10 10-7-2= 1
9+0+1= 10 5- 3 -1= 1 10-1-6= 3
9-3-4 你是怎么算的? 9-3-4=2
6
4+3+2 你是怎么算的? 4+3+2=9
7
新授
( 3)朵 ( 5)朵 ( 2)朵
练习
7 - 3 + 4= 8
4
练习
连一连
练习
3+4 – 2 =5 8 – 5 +3 =6 9 – 5 + 3 =7