简便运算(巧算) 12.5×80.8 0.98×4.5 9.9×9.9+0.99 150÷1.25简便运算(巧算)12.5×80.80.98×4.59.9×9.9+0.99150÷1.25解方程(要有计算过程)4×0.2+x÷2=11.42÷x-6+8.8=10.83÷(9x-60-2x)=0.320+8(4-x)=2047x-6=7x+4
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![简便运算(巧算) 12.5×80.8 0.98×4.5 9.9×9.9+0.99 150÷1.25简便运算(巧算)12.5×80.80.98×4.59.9×9.9+0.99150÷1.25解方程(要有计算过程)4×0.2+x÷2=11.42÷x-6+8.8=10.83÷(9x-60-2x)=0.320+8(4-x)=2047x-6=7x+4](/uploads/image/z/129571-43-1.jpg?t=%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%28%E5%B7%A7%E7%AE%97%29+12.5%C3%9780.8+0.98%C3%974.5+9.9%C3%979.9%2B0.99+150%C3%B71.25%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%28%E5%B7%A7%E7%AE%97%2912.5%C3%9780.80.98%C3%974.59.9%C3%979.9%2B0.99150%C3%B71.25%E8%A7%A3%E6%96%B9%E7%A8%8B%28%E8%A6%81%E6%9C%89%E8%AE%A1%E7%AE%97%E8%BF%87%E7%A8%8B%294%C3%970.2%2Bx%C3%B72%EF%BC%9D11.42%C3%B7x-6%2B8.8%EF%BC%9D10.83%C3%B7%289x-60-2x%29%EF%BC%9D0.320%2B8%284-x%29%EF%BC%9D2047x-6%EF%BC%9D7x%2B4)
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