用乘法解决问题 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. ( ) 加法: 3+3=6 乘法: 3 × 2=6 或 2 × 3=6 2. 3 个5相加是( ) 加法: 5+5+5=15 乘法: 5 × 3=15 或 3 × 5=15 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 问题:有 3只大象,每只大象运 2根木头,一共运了多少根木头? 想:每一组有( )根,有( )组,也就是( )个( ) 2 ×3 = 6 (根)或 3 ×2 = 6 (根) 答:一共运 6根木头。 222 22 33 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 坐小飞机的一共有多少人? 想: ()个( ) 22 2 2 2×4=8(人) 或4×2=8(人) 答:坐小飞机的一共有 8人。 2 4 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose P
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