• 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.
。2021年1月14日星期四2021/1/142021/1/142021/1/14
• 15、会当凌绝顶,一览众山小。2021年1月2021/1/142021/1/142021/1/141/14/2021
• 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。2021/1/142021/1/14January 14, 2021
3 2 □1
5 2 □3
8 2 □6
7 2 □5
8 + ( 2 ) = 10
8 + ( 2 ) = 10
1
出示动画“8加几”
2 摆一摆,算一算
8 + 4 = □12
2 □2
10
8 + 7 = 1□5
□2 □5
10
3 想一想
8 + 5 = □13
8 + 6 = 1□4
23
10
8 + 8 = 1□6
24
10
26 10
4 8+9=□
方法一: + 9 = □17
27 10 方法二: