新北师大版数学一年级下册《跳绳》PPT课件

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Copyright 20退04一-20当11十Aspose Pty Ltd.
十位
个位
返回
十位上的3借
走1还剩2
2-2=0
3 210
12
个位上的2减8
2 8 Evaluation on不ly够. 减,从十位
ted with Aspose.Slides for .NET 3.5借C一li。ent Profile 5.2 Copyright 2004-2011 Aspose Pty Ltd.
Evaluation only. ted with Aspose.Slides for .NET 3.5 Client Profile 5.2
Copyright 2004来自百度文库2011 Aspose Pty Ltd.
北师大版一年级数学下册
Evaluation only.(1)
ted with Aspose.Slides for .NET 3.5 Client Profile 5.2 Copyright 2004-2011 Aspose Pty Ltd.
1 2 十位上的4
借走1还剩3 3-2=1
返回
40
Evaluation only.
2 8 ted with Aspose.Slides for .NET 3.5 Client Profile 5.2 Copyright 2004-2011 Aspose Pty Ltd.
12
小红 小亮 小东
40下 28下 32下
85-58= 27
借走1还剩
7 7-5=2
10
85
15
5 8 Evaluation only个. 位上的5减8
ted with Aspose.Slides for .NET 3不.5够C减lie,从nt十P位rofile 5.2 Copyright 2004-2011 Aspose借P一ty。Ltd.
27
用竖式计算:
85-58= 27 Evaluation.only. ted with Aspose.Slides for .N8ET53.5 Client Profile 5.2 Copyright 2004--20115A8spose Pty Ltd.
27
试一试
100Ev-alua4tio8n=only?.
ted with Aspos少e小.跳S亮lEid多v比eas少l小ufao下东trio.?NnEoTnl3y..5 Client Profile 5.2
Copyright 2004-2011 Aspose Pty Ltd.
32-28=? (下)
32-28=4(下)
Evaluation only. ted with Aspose.Slides for .NET 3.5 Client Profile 5.2
· · · ted-
21 wit2h
53
7
Aspose.SlEid-veaslu6faotrio.NnEoTnl3y-..35
0 C4lient
Profile
5.2
1 9 Copyright 20044-72011 Aspo3se6Pty Ltd.
相同数位对齐, 从个位算起。
用竖式计算: 十位上的8
Copyright 20退04一-20当11十Aspose Pty Ltd.
十位
个位
返回
退位点
4 010
10
个位上的0减8
2 8 Evaluation on不ly够. 减,从十位
ted with Aspose.Slides for .NET 3.5借C一li。ent Profile 5.2 Copyright 2004-2011 Aspose Pty Ltd.
17
用竖式计算:
44-27= 17 Ev.aluation only.
ted with Aspose.Slid4es f4or .NET 3.5 Client Profile 5.2 Copyrigh-t 20204-72011 Aspose Pty Ltd. 17
用竖式计算: 十位上的8
80-55= 25
用竖式计算: 十位上的4
44-27= 17
借走1还剩
3 3-2=1
10
44
14
2 7 Evaluation only个. 位上的4减7
ted with Aspose.Slides for .NET 3不.5够C减lie,从nt十P位rofile 5.2 Copyright 2004-2011 Aspose借P一ty。Ltd.
ted with Aspose.Slides for .NET 3.5 Client Profile 5.2
1 0 0 Copyright 2004-2011 Aspose Pty Ltd. - 48
100-48= 52 .. Evaluation only.
1 0 0 ted with Aspose.Slides for .NET 3.5 Client Profile 5.2 Copyright 2004-2011 Aspose Pty Ltd. - 48 52
跳绳
小红 小亮 小东
40下 28下 32下
Evaluation only. ted with Aspose.Slides for .NET 3.5 Client Profile 5.2
Copyright 2004-2011 Aspose Pty Ltd.
小红 小亮 小东
40下 28下 32下
小红比E小va亮lua多tio跳n o多nly少. 下?
4
32
Evaluation only.
2 8 ted with Aspose.Slides for .NET 3.5 Client Profile 5.2 Copyright 2004-2011 Aspose Pty Ltd.
4
算一算,说一说。
个位不够减, 向十位借1。
21-2= 19
53-6= 47 70-34= 36
ted with Aspose.Slides for .NET 3.5 Client Profile 5.2
40-28=? (下) Copyright 2004-2011 Aspose Pty Ltd.
40-28=12(下)
Evaluation only. ted with Aspose.Slides for .NET 3.5 Client Profile 5.2
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