用简便方法计算:248×69-17×248+248×48 (125×99+125)×16 = =谁知道啊 FAST
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![用简便方法计算:248×69-17×248+248×48 (125×99+125)×16 = =谁知道啊 FAST](/uploads/image/z/265315-67-5.jpg?t=%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97%EF%BC%9A248%C3%9769-17%C3%97248%2B248%C3%9748+%EF%BC%88125%C3%9799%2B125%EF%BC%89%C3%9716+%3D+%3D%E8%B0%81%E7%9F%A5%E9%81%93%E5%95%8A+FAST)
用简便方法计算:248×69-17×248+248×48 (125×99+125)×16 = =谁知道啊 FAST
用简便方法计算:248×69-17×248+248×48 (125×99+125)×16 = =
谁知道啊 FAST
用简便方法计算:248×69-17×248+248×48 (125×99+125)×16 = =谁知道啊 FAST
248×69-17×248+248×48
=248×(69-17+48)
=248×100
=24800
(125×99+125)×16
=125×(99+1)×16
=125×100×16……把16分解成(2×8)
=12500×8×2
=100000×2
=200000