1、小學數學五年級課件（人教版）等式的性質（2）Evaluation Warning : The document was created with Spire.Presentation for .NET天平兩端平衡，你能找到相應的等量關系嗎？1瓶墨水與2個文具盒同樣重返回 a2bEvaluation Warning : The document was created with Spire.Presentation for .NET如果天平兩邊的物品分別擴大到原來的3倍、4倍、5倍，天平仍然平衡嗎？返回 a2bEvaluation Warning : The document was creat

2、ed with Spire.Presentation for .NET如果用等式該怎么表示呢？返回 a22b2Evaluation Warning : The document was created with Spire.Presentation for .NET a32b3 a42b4你能列出相應的等式嗎？返回Evaluation Warning : The document was created with Spire.Presentation for .NET天平兩邊的質量同時擴大相同的倍數，天平仍保持平衡。a2ba22b2a32b3a42b4觀察這組等式，你發現了什么規律？返回Eva

3、luation Warning : The document was created with Spire.Presentation for .NET 2a6b你能用相應的等式表示嗎？如果天平兩邊的物品都平均分成2份，各去掉一份，天平仍然平衡嗎？返回Evaluation Warning : The document was created with Spire.Presentation for .NET 2a26b21個排球與3個皮球同樣重你發現了什么？用等式怎么表示？返回Evaluation Warning : The document was created with Spire.Pres

4、entation for .NET2a6b2a26b2觀察這組等式，你發現了什么規律？天平兩邊的質量同時縮小到原來的幾分之一，天平仍保持平衡。返回Evaluation Warning : The document was created with Spire.Presentation for .NET等式的性質2等式兩邊乘同一個數，或除以同一個不為0的數，左右兩邊仍然相等。返回Evaluation Warning : The document was created with Spire.Presentation for .NET若a=b，則adb（ ）若a=b，則a（ ）b10d10填一填。

5、返回Evaluation Warning : The document was created with Spire.Presentation for .NET1.要保持天平平衡，右邊應該添加什么物品？答：加兩個相同的長方體。返回Evaluation Warning : The document was created with Spire.Presentation for .NET（1）如果x12=36，那么x1212=36 ( )。（2）如果9x=36，那么9x9=36 ( )。 12 92.在里填運算符號，在括號里填數字。返回Evaluation Warning : The docume

6、nt was created with Spire.Presentation for .NET 在 x1=2中兩邊乘以_，得4x4=8，兩 邊再同時加上4，得4x=12，變形依據分別是 _ 。等式兩邊乘同一個數，或除以同一個不為0的數，左右兩邊仍然相等43填一填。返回Evaluation Warning : The document was created with Spire.Presentation for .NET等式的性質2: 等式兩邊乘同一個數,或除以同一個不為0的數,左右兩邊仍然相等。返回Evaluation Warning : The document was created with Spire.Presentation for .NET1.從教材課后習題中選