(共17张PPT)
北师大版一年级数学下册
做个减法表
10-2=8
11-3=8
12-4=8
13-5=8
14-6=8
15-7=8
16-8=8
17-9=8
17-9=8
16-8=8
15-7=8
14-6=8
13-5=8
12-4=8
11-3=8
10-2=8
14-5=9
14-6=8
14-7=7
14-8=6
14-9=5
14-5=9
14-6=8
14-7=7
14-8=6
14-9=5
10-8=2
11-8=3
12-8=4
13-8=5
15-8=7
16-8=8
17-8=9
17-8=9
16-8=8
15-8=7
14-8=6
14-8=6
13-8=5
12-8=4
11-8=3
10-8=2
10-5
11-6
12-7
13-8
14-9
10-6
11-7
12-8
13-9
10-7
11-8
12-9
10-8
11-9
10-9
10-2
11-3
12-4
13-5
14-6
15-7
16-8
17-9
10-3
11-4
12-5
13-6
14-7
15-8
16-9
10-4
11-5
13-7
14-8
15-9
12-6
10-1
11-2
12-3
13-4
14-5
16-7
15-6
18-9
17-8
10-?
11-?
12-?
13-?
14-?
15-?
16-?
17-?
18-?
9
8
7
6
5
4
3
2
1
11-9
12-9
13-9
14-9
15-9
16-9
17-9
18-9
11-8
13-8
14-8
16-8
17-8
12-7
14-7
16-7
11-6
13-6
15-6
12-5
14-5
11-4
13-4
12-3
11-2
还可以这样填:
11-9
12-9
13-9
14-9
15-9
16-9
17-9
18-9
11-8
12-8
13-8
14-8
15-8
16-8
17-8
11-7
12-7
13-7
14-7
15-7
16-7
11-6
12-6
13-6
14-6
15-6
11-5
12-5
13-5
14-5
11-4
12-4
13-4
11-3
12-3
11-2
7
5
12
5
7
12
12
7
5
12
5
7
8
7
15
7
8
15
15
8
7
15
7
8
看图列算式
想加算减
3+8= 4+9= 5+7=
11—3= 13—4= 12—5=
11—8= 13―9= 12—7=
11
8
3
13
9
4
12
7
5
同学们,这节课你们有什么收获吗?
说一说,与大家一起分享!