一年级上册数学人教版 第八单元20以内的进位加法9加几（课件）(共42张PPT)

(共42张PPT)
9加几
生活中的 10
数 数 大 比 拼
11
13
11
11
17
16
10
10
10
+3=13
+1=11
+6=16
10加几就是（ ）。
十几
13 是怎么来的？
摆一摆
想一想
说一说
移一移
写一写
说一说
9 + 4 =
1
3
10
13
把（ ）分成（ ）和（ ）
（ ）和 9 凑成 10
10 +（ ）=（ ）
4
1
3
1
3
13
9 + 2 =
1
1
10
11
同桌合作
摆一摆
说一说
1
7
10
17
9 + 8 =
圈一圈，算一算
9 + 5 =
1
10
9 + 7 =
10
记 忆 小 火 车
9 + 4 = 13
9 + 2 = 11
9 + 8 = 17
9 + 5 = 14
9 + 7 = 16
1
3
10
1
1
10
1
7
10
1
4
10
1
6
10
9 +1+3= 13
9 +1+1= 11
9 +1+7= 17
9 +1+4= 14
9 +1+6= 16
9 + 1 + 2 =
9 + 3 =
9 + 1 + 5 =
9 + 6 =
9 + 1 + 8 =
9 + 9 =
12
12
18
18
15
15
10
10
10
9 + 4 = 13
4
7
2
5
8
3
6
9
9+
9 + 4 = 13
9 + 7 = 16
7
9+
9 + 4 = 13
9 + 7 = 16
9 + 2 = 11
2
9+
9 + 4 = 13
9 + 7 = 16
9 + 2 = 11
9 + 8 = 17
9+
8
9 + 4 = 13
9 + 7 = 16
9 + 2 = 11
9 + 8 = 17
9 + 5 = 14
9+
5
9 + 4 = 13
9 + 7 = 16
9 + 2 = 11
9 + 8 = 17
9 + 5 = 14
9 + 3 = 12
3
9+
9 + 4 = 13
9 + 7 = 16
9 + 2 = 11
9 + 8 = 17
9 + 5 = 14
9 + 3 = 12
9 + 6 = 15
6
9+
9 + 4 = 13
9 + 7 = 16
9 + 2 = 11
9 + 8 = 17
9 + 5 = 14
9 + 3 = 12
9 + 6 = 15
9 + 9 = 18
9+
9
9 + 4 = 13
9 + 7 = 16
9 + 2 = 11
9 + 8 = 17
9 + 5 = 14
9 + 3 = 12
9 + 6 = 15
9 + 9 = 18
9 + 4 = 13
9 + 7 = 16
9 + 2 = 11
9 + 8 = 17
9 + 5 = 14
9 + 3 = 12
9 + 6 = 15
9 + 9 = 18
2
1
3
2
4
3
5
4
6
5
7
6
8
7
9
8
凑
十
法
9加几
8加几
7加几
6加几
......
感谢观看