二年级数学下册用2—6的乘法口诀求商例4.ppt

* 一辆小汽车4元钱，买5辆小汽车多少钱？ Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 12 ÷3 = 4 (元) 4 × 5 =20(元) 一辆小汽车多少钱？ 5辆小汽车多少钱？ Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 做一做 用这些花可以摆多个图案？ 你还想提出什么问题？ 每6盆花可以摆一个图案 2×9=18(盆) 18÷6=3（个） 一共多少盆花？ 用这些花可以摆多个图案？ Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 1. 每箱有 8 瓶。 每个同学分几瓶? 把这 2 箱水平均 分给 4 个同学。 8×2 = 16(瓶) 16÷4 = 4(瓶) Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 2张纸可以做8朵花。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 分析：　　2张纸可以做8朵花，每张纸可以做 （　）朵 　　8 ÷2 = 4（朵） 现在有5张纸，那么就有： 　　4 × 5 = 20（朵） ４ Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 3. (1)平均分给 4 人，每人几个气球? (2)平均分给 6 人，每人几个气球? 8×3 = 24(个) 24÷4 = 6(个) 24÷6 = 4(个) Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.