简便方法计算:(1)88²-12² (2)2013²-2013×2010
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![简便方法计算:(1)88²-12² (2)2013²-2013×2010](/uploads/image/z/1239085-37-5.jpg?t=%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97%EF%BC%9A%EF%BC%881%EF%BC%8988%26%23178%3B-12%26%23178%3B+%EF%BC%882%EF%BC%892013%26%23178%3B-2013%C3%972010)
简便方法计算:(1)88²-12² (2)2013²-2013×2010
简便方法计算:(1)88²-12² (2)2013²-2013×2010
简便方法计算:(1)88²-12² (2)2013²-2013×2010
88²-12²
=(88+12)×(88-12)
=100×76
=7600
2013²-2013×2010
=2013²-2013×(2013-3)
=2013²-2013²+2013×3
=2013×3
=6039
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